Veltkamp, H. J. (1986). Physiological causes of yield variation in cassava (Manihot esculenta Crantz). Wageningen Agricultural University.
Chicago Style (17th ed.) CitationVeltkamp, H. J. Physiological Causes of Yield Variation in Cassava (Manihot Esculenta Crantz). Wageningen: Wageningen Agricultural University, 1986.
MLA (9th ed.) CitationVeltkamp, H. J. Physiological Causes of Yield Variation in Cassava (Manihot Esculenta Crantz). Wageningen Agricultural University, 1986.