APA (7th ed.) Citation

Parker, B. M., & Van Biesbroeck, G. (1953). Ο ουρανός. Πεχλιβανίδης.

Chicago Style (17th ed.) Citation

Parker, Bertha Morris, and George Van Biesbroeck. Ο ουρανός. Αθήναι: Πεχλιβανίδης, 1953.

MLA (9th ed.) Citation

Parker, Bertha Morris, and George Van Biesbroeck. Ο ουρανός. Πεχλιβανίδης, 1953.