"Agriculture." . . "Zea mays." . . . . "Maize its history, cultivation, handling, and uses, with special reference to South Africa : a text-book for farmers, students of agriculture, and teachers of nature study"@en . . "Maize : its history, cultivation, handling and uses with special reference to South Africa ; a text book for farmers, students of agriculture and teachers of nature study"@en . . "Maize; its history, cultivation, handling, and uses, with special reference to South Africa; a text-book for farmers, students of agriculture, and teachers of nature study" . . . "Maize its history, cultivation, handling, and uses, with special reference to South Africa; a text-book for farmers, students of agriculture, and teachers of nature study"@en . . "Maize : its history, cultivation, handling, and uses ; with special reference to South Africa" . . . . . "Maize: its history, cultuvation, handling, and uses : with special reference to South Africa : a textbook for farmers, students of agriculture, and teachers of nature study" . . "History"@en . "Textbooks"@en . . . . . . . "Maize, its history, cultivation, handling and uses... A Text-book... by Joseph Burtt-Davy" . .