Cita APA

PK Gupta. (1999). Handbook of soil,fertilizer and manure. Botanica.

Chicago Edition Citation

PK Gupta. Handbook of Soil,fertilizer and Manure. Bikaner: Botanica, 1999.

Cita MLA

PK Gupta. Handbook of Soil,fertilizer and Manure. Botanica, 1999.