Cita APA

Ashok ,Gupta. (2001). Billion is Enough: India`s population problem -a way out. IMH publishers.

Citación estilo Chicago

Ashok ,Gupta. Billion Is Enough: India`s Population Problem -a Way Out. New Delhi: IMH publishers, 2001.

Cita MLA

Ashok ,Gupta. Billion Is Enough: India`s Population Problem -a Way Out. IMH publishers, 2001.