APA Citation

Hellström, P., & Langballe, H. (1970). The rock drawings. [s.l.: The Scandinavian Joint Expedition to Sudanese Nubia.

Chicago Style Citation

Hellström, Pontus., and Hans Langballe. The Rock Drawings. [s.l.: The Scandinavian Joint Expedition to Sudanese Nubia, 1970.

MLA Citation

Hellström, Pontus., and Hans Langballe. The Rock Drawings. [s.l.: The Scandinavian Joint Expedition to Sudanese Nubia, 1970.

Warning: These citations may not always be 100% accurate.