Παραπομπή APA

Pirogova,L I. (1988). Conjugation of Russian verbs. Russky Yazyk publishers.

Παραπομπή Chicago Style

Pirogova,L I. Conjugation of Russian Verbs. Moscow: Russky Yazyk publishers, 1988.

Παραπομπή MLA

Pirogova,L I. Conjugation of Russian Verbs. Russky Yazyk publishers, 1988.