Citazione Stile APA (7a Edizione)

Greulach, V. A. (1967). Plants: An itroduction to modern botany. John Wiley and Sons.

Citazione stile Chigago Style (17a edizione)

Greulach, Victor A. Plants: An Itroduction to Modern Botany. New York: John Wiley and Sons, 1967.

Citatione MLA (9a ed.)

Greulach, Victor A. Plants: An Itroduction to Modern Botany. John Wiley and Sons, 1967.