Cita APA (7a ed.)

Larkin, P. J., & Ralphs, D. H. (1973). African heritage. Hulton.

Cita Chicago Style (17a ed.)

Larkin, P. J., y Dorothy H. Ralphs. African Heritage. Amersham: Hulton, 1973.

Cita MLA (9a ed.)

Larkin, P. J., y Dorothy H. Ralphs. African Heritage. Hulton, 1973.