APA (7th ed.) Citation

Krüssmann, G. (1981). The complete book of roses. Timber Press in cooperation with the American Horticultural Society.

Chicago Style (17th ed.) Citation

Krüssmann, Gerd. The Complete Book of Roses. Portland, Or.: Timber Press in cooperation with the American Horticultural Society, 1981.

MLA (9th ed.) Citation

Krüssmann, Gerd. The Complete Book of Roses. Timber Press in cooperation with the American Horticultural Society, 1981.