Παραπομπή APA

Genders, R. (1973). Bulbs: A complete handbook of bulbs, corns and tubers. Robert Hale.

Παραπομπή Chicago Style

Genders, Roy. Bulbs: A Complete Handbook of Bulbs, Corns and Tubers. London: Robert Hale, 1973.

Παραπομπή MLA

Genders, Roy. Bulbs: A Complete Handbook of Bulbs, Corns and Tubers. Robert Hale, 1973.