Citazione APA

Bold, H. C. (1968). Plant kingdom (2nd rev.ed.). Prentice-Hall of India.

Stile di citazione Chicago

Bold, Harold C. Plant Kingdom. 2nd rev.ed. New Delhi: Prentice-Hall of India, 1968.

Citazione MLA

Bold, Harold C. Plant Kingdom. 2nd rev.ed. Prentice-Hall of India, 1968.