APA (7th ed.) Citation

Frey, W., & Probst, W. (1986). A Synopsis of Vegetation of Iran.

Chicago Style (17th ed.) Citation

Frey, Wolfgang, and Wilfried Probst. A Synopsis of Vegetation of Iran. Wiesbaden, 1986.

MLA (8th ed.) Citation

Frey, Wolfgang, and Wilfried Probst. A Synopsis of Vegetation of Iran. 1986.