APA
Petersen V. R., . (1988). ʼKursbuchʼ 1965-1975. : Peter Lang Incorporated, International Academic Publishers.
Chicago
Petersen Vibeke Rützou, . 1988. ʼKursbuchʼ 1965-1975. : Peter Lang Incorporated, International Academic Publishers.
Harvard
Petersen V. R., . (1988). ʼKursbuchʼ 1965-1975. : Peter Lang Incorporated, International Academic Publishers.
MLA
Petersen Vibeke Rützou, . ʼKursbuchʼ 1965-1975. : Peter Lang Incorporated, International Academic Publishers. 1988.