"Praderas EE.UU." . . "Praderas EE. UU." . . . . . . . "The grassland of North America : prolegomena to its history, with addenda" . "The Grassland of North America"@en . . . . . . . "The grassland of north America" . "The grassland of North America : prolegomena to its history with addenda and postscript" . . . . . . . "The grassland of North America. Prolegomena to its history. With addenda and postscript" . . . . . . . . "The grassland of North America : prolegomena to its history : with addenda"@en . . . "The grassland of North America : prolegomena to its history, with addenda and postscript" . "The grassland of North America : Prolegomena to its history with addenda" . . . . "The grassland of North America : prolegomena to its history with addenda"@en . "The grassland of North America : prolegomena to its history with addenda" . . "The grassland of North America : Prolegomena to its history" . "The grassland of North America : prolegomena to its history" . "The grassland of North America : prolegomena to its history"@en . "The grassland of North America prolegomena to its history, with addenda and postscript" . "The grassland of North America prolegomena to its history, with addenda and postscript"@en . . . . . . . "The grassland of North America: prolegomena to its history, with addenda" . . . . . . . "The grassland of North America prolegomena to its history"@en . "The grassland of North America prolegomena to its history" . . . . . . . . "The grassland of North America; prolegomena to its history, with addenda and postscript" . . "The grass land of North America, prolegomena to its history" . . . . "The grassland of North America, prolegomena to its history"@en . "The grassland of North America, prolegomena to its history" . . . . . . . "Prairies." . . "Géographie humaine États-Unis États de l'Ouest." . . "Geografía física EE.UU. Oeste." . . "Geografía física EE. UU. Oeste." . "Géographie physique Etats-Unis Etats de l'Ouest." . . "Écologie des prairies États-Unis (nord-est)" . . "Géographie humaine Ouest américain." . . "Historiographie États-Unis." . . . . "Géographie physique Ouest américain." . . "USA" . .