APA (7th ed.) Citation

Beales, P. (1988). Twentieth-century roses: An illustrated encyclopaedia and grower's manual of classic roses from the twentieth century (1st US ed.). Harper & Row.

Chicago Style (17th ed.) Citation

Beales, Peter. Twentieth-century Roses: An Illustrated Encyclopaedia and Grower's Manual of Classic Roses from the Twentieth Century. 1st US ed. New York: Harper & Row, 1988.

MLA (9th ed.) Citation

Beales, Peter. Twentieth-century Roses: An Illustrated Encyclopaedia and Grower's Manual of Classic Roses from the Twentieth Century. 1st US ed. Harper & Row, 1988.