Παραπομπή σε μορφή APA (7η εκδ.)

Rogalla, H., & Rogalla, W. (1985). German for Academic Purposes: An introduction to reading Academic Publications. Langenscheidt.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Rogalla, Hanna, και Willy Rogalla. German for Academic Purposes: An Introduction to Reading Academic Publications. Berlin: Langenscheidt, 1985.

Παραπομπή σε μορφή MLA (9th εκδ.)

Rogalla, Hanna, και Willy Rogalla. German for Academic Purposes: An Introduction to Reading Academic Publications. Langenscheidt, 1985.