Cita APA (7a ed.)

Edwards, E., & Bhatnagar, J. K. (1974). The world we live in (5., rev. ed.). Pitambar Book Depot.

Cita Chicago Style (17a ed.)

Edwards, E., y J. K. Bhatnagar. The World We Live in. 5., rev. ed. New Delhi: Pitambar Book Depot, 1974.

Cita MLA (9a ed.)

Edwards, E., y J. K. Bhatnagar. The World We Live in. 5., rev. ed. Pitambar Book Depot, 1974.