APA (7th ed.) Citation

Schmitz, H., Sommer, M., & Walter, S. (1990). Animal traction in rainfed agriculture in Africa and South America: Determinants and experiences. TU.

Chicago Style (17th ed.) Citation

Schmitz, Heribert, Mathias Sommer, and Sabine Walter. Animal Traction in Rainfed Agriculture in Africa and South America: Determinants and Experiences. Berlin: TU, 1990.

MLA (9th ed.) Citation

Schmitz, Heribert, et al. Animal Traction in Rainfed Agriculture in Africa and South America: Determinants and Experiences. TU, 1990.