Citazione Stile APA (7a Edizione)

Rehm, S., & Espig, G. (1991). The cultivated plants of the tropics and subtropics: Cultivation, economic value, utilization. V. J. Margraf.

Citazione stile Chigago Style (17a edizione)

Rehm, Sigmund, e Gustav Espig. The Cultivated Plants of the Tropics and Subtropics: Cultivation, Economic Value, Utilization. West Germany: V. J. Margraf, 1991.

Citatione MLA (9a ed.)

Rehm, Sigmund, e Gustav Espig. The Cultivated Plants of the Tropics and Subtropics: Cultivation, Economic Value, Utilization. V. J. Margraf, 1991.