APA aipamena

Andreasen, G. (1963). In twenty years: Our common future. Popular Prakashan.

Chicago Style aipamena

Andreasen, Gunnar. In Twenty Years: Our Common Future. Bombay: Popular Prakashan, 1963.

MLA aipamena

Andreasen, Gunnar. In Twenty Years: Our Common Future. Popular Prakashan, 1963.