APA (7th ed.) Citation

Parpola, A., Aalto, P., Parpola, S., & Koskenniemi, S. (1969). Progress in Decipherment of the Proto-Dravidian Indus Script.

Chicago Style (17th ed.) Citation

Parpola, Asko, Pentti Aalto, Simo Parpola, and Seppo Koskenniemi. Progress in Decipherment of the Proto-Dravidian Indus Script. Copenhagen, 1969.

MLA (8th ed.) Citation

Parpola, Asko, et al. Progress in Decipherment of the Proto-Dravidian Indus Script. 1969.