APA
Hickey M., King C., . (1981). One hundred families of flowering plants. Cambridge: Cambridge university Press.
Chicago
Hickey Michael, King Clive, . 1981. One hundred families of flowering plants. Cambridge: Cambridge university Press.
Harvard
Hickey M., King C., . (1981). One hundred families of flowering plants. Cambridge: Cambridge university Press.
MLA
Hickey Michael, King Clive, . One hundred families of flowering plants. Cambridge: Cambridge university Press. 1981.
