Cita APA

Gupta, P. K. (2003). Vermicomposting for sustainable agriculture (2nd rev. ed.). Agrobios.

Citación estilo Chicago

Gupta, P. K. Vermicomposting for Sustainable Agriculture. 2nd rev. ed. jodhpur: Agrobios, 2003.

Cita MLA

Gupta, P. K. Vermicomposting for Sustainable Agriculture. 2nd rev. ed. Agrobios, 2003.