Παραπομπή APA

Enochs, E. E., & Jenda, O. M. G. (2000). Relative homological algebra. Walter De Gruyter Inc.

Παραπομπή Chicago Style

Enochs, Edgar E., και Overtoun M. G. Jenda. Relative Homological Algebra. Berlin: Walter De Gruyter Inc, 2000.

Παραπομπή MLA

Enochs, Edgar E., και Overtoun M. G. Jenda. Relative Homological Algebra. Walter De Gruyter Inc, 2000.