APA (7th ed.) Citation

Ferwerda, F. P., & Wit, F. (1969). Outlines of perennial crop breeding in the tropics. H. Veenman & Zonen.

Chicago Style (17th ed.) Citation

Ferwerda, F. P., and Free Wit. Outlines of Perennial Crop Breeding in the Tropics. Wageningen: H. Veenman & Zonen, 1969.

MLA (9th ed.) Citation

Ferwerda, F. P., and Free Wit. Outlines of Perennial Crop Breeding in the Tropics. H. Veenman & Zonen, 1969.