Παραπομπή APA

Subba Rao,N S. (1993). Biofertilizers in agriculture and forestry. Oxford & IBH.

Παραπομπή Chicago Style

Subba Rao,N S. Biofertilizers in Agriculture and Forestry. New Delhi: Oxford & IBH, 1993.

Παραπομπή MLA

Subba Rao,N S. Biofertilizers in Agriculture and Forestry. Oxford & IBH, 1993.