Gaya APA
Agazzi, E. et al (1991).
Philosophy and the future of humanity volume 1 No. 2 April, 1991 .
Jakarta:
Universitas Nasional.
Gaya MLA
Agazzi, Evandro. et al.
"Philosophy and the future of humanity volume 1 No. 2 April, 1991".
Jakarta:
Universitas Nasional,
1991.
Text.