Citazione APA

Gopal Swarup, D. D. R., & Koshy, P. K. (1989). Plant diseases. Anmol publications.

Stile di citazione Chicago

Gopal Swarup, Dasgupta D R., e P K. Koshy. Plant Diseases. Newdelhi: Anmol publications, 1989.

Citazione MLA

Gopal Swarup, Dasgupta D R., e P K. Koshy. Plant Diseases. Anmol publications, 1989.