Cita APA

Cronquist, A., & Takhtajan, A. L. (1981). An integrated system of classification of flowering plants. New York: Columbia University Press.

Citación estilo Chicago

Cronquist, Arthur, y Armen Leonovich Takhtajan. An Integrated System of Classification of Flowering Plants. New York: Columbia University Press, 1981.

Cita MLA

Cronquist, Arthur, y Armen Leonovich Takhtajan. An Integrated System of Classification of Flowering Plants. New York: Columbia University Press, 1981.