APA
C. R. Metcalfe, . (1987). Magnoliales, Illiciales, and Laurales - sensu Armen Takhtajan. Oxford: Oxford University Press; Clarendon Press.
Chicago
C. R. Metcalfe, . 1987. Magnoliales, Illiciales, and Laurales - sensu Armen Takhtajan. Oxford: Oxford University Press; Clarendon Press.
Harvard
C. R. Metcalfe, . (1987). Magnoliales, Illiciales, and Laurales - sensu Armen Takhtajan. Oxford: Oxford University Press; Clarendon Press.
MLA
C. R. Metcalfe, . Magnoliales, Illiciales, and Laurales - sensu Armen Takhtajan. Oxford: Oxford University Press; Clarendon Press. 1987.