Citazione APA

Yadava, P. S., & Singh, J. S. (1977). Grassland vegetation. Today & Tomorrow's Printers and Publishers.

Stile di citazione Chicago

Yadava, P. S., e J. S. Singh. Grassland Vegetation. New Delhi: Today & Tomorrow's Printers and Publishers, 1977.

Citazione MLA

Yadava, P. S., e J. S. Singh. Grassland Vegetation. Today & Tomorrow's Printers and Publishers, 1977.