Cita APA (7th ed.)

Collins, M., & Hamaidia, L. (2005). Eric Collins: 1897-1993 ; a quiet Hero. Isensee Verl..

Cita Chicago (17th ed.)

Collins, Margarethe, i Lena Hamaidia. Eric Collins: 1897-1993 ; a Quiet Hero. Oldenburg: Isensee Verl., 2005.

Cita MLA (8th ed.)

Collins, Margarethe, i Lena Hamaidia. Eric Collins: 1897-1993 ; a Quiet Hero. Isensee Verl., 2005.