Novak, F. A. The pictorial encyclopedia of plants and flowers / F. A. Novak ; edited by J. G. Barton. - London : P. Hamlyn, © 1976. - 589 p. : ill. ; 22 cm. Includes index. 319 319 ISBN: 0 600 03079 2 Subjects--Topical Terms: Botany. Dewey Class. No.: 581.03 / N857p