Gupta, P. K. (2004). Vermicomposting for sustainable agriculture.
Chicago Edition CitationGupta, P K. Vermicomposting for Sustainable Agriculture. Jodhpur, Agrobios, 2004.
Cita MLAGupta, P K. Vermicomposting for Sustainable Agriculture. 2004.
Atenció: Aquestes cites poden no estar 100% correctes.