APA (7th ed.) Citation

Breckle, S., Frey, W., & Hedge, I. C. (1969). Botanical literature of Afghanistan ([Sonderdr.].).

Chicago Style (17th ed.) Citation

Breckle, Siegmar-Walter, Wolfgang Frey, and Ian Charleson Hedge. Botanical Literature of Afghanistan. [Sonderdr.]. 1969.

MLA (9th ed.) Citation

Breckle, Siegmar-Walter, et al. Botanical Literature of Afghanistan. [Sonderdr.]. 1969.