APA
(1999). Physiology of crop growth and practicals on plants and soil. Wageningen, Netherlands: STOAS.
Chicago
1999. Physiology of crop growth and practicals on plants and soil. Wageningen, Netherlands: STOAS.
Harvard
(1999). Physiology of crop growth and practicals on plants and soil. Wageningen, Netherlands: STOAS.
MLA
Physiology of crop growth and practicals on plants and soil. Wageningen, Netherlands: STOAS. 1999.