"Surf riding." . . . . . "Know-how in the Surf"@en . . . "Know-how in the surf. [With plates and illustrations.]"@en . . . . . . "Know-how in the surf"@en . . . "Know-how in the Surf. [With plates.]"@en . . "Know-how in the surf" . . . . . "Know-how in the surf, by john bloomfield" . . . . . . . .