Obermaier, H., & Kühn, H. (1930). Bushman art: Rock paintings of South-West Africa ; based on the photographic material collected by Reinhard Maack. Milford.
Chicago Style (17th ed.) CitationObermaier, Hugo, and Herbert Kühn. Bushman Art: Rock Paintings of South-West Africa ; Based on the Photographic Material Collected by Reinhard Maack. London [u.a.]: Milford, 1930.
MLA (9th ed.) CitationObermaier, Hugo, and Herbert Kühn. Bushman Art: Rock Paintings of South-West Africa ; Based on the Photographic Material Collected by Reinhard Maack. Milford, 1930.
Warning: These citations may not always be 100% accurate.