APA

Giannasi D. E., . (1975). The flavonoid systematics of the genus dahlia (Compositae). Bronx, New York: The New York Botanical Garden.

Chicago

Giannasi David E, . 1975. The flavonoid systematics of the genus dahlia (Compositae). Bronx, New York: The New York Botanical Garden.

Harvard

Giannasi D. E., . (1975). The flavonoid systematics of the genus dahlia (Compositae). Bronx, New York: The New York Botanical Garden.

MLA

Giannasi David E, . The flavonoid systematics of the genus dahlia (Compositae). Bronx, New York: The New York Botanical Garden. 1975.