Gaya APA

Bold, H, C., W., L, C, J. (1987). The plant kingdom (5th.ed.). Englewood Cliffs: Prentice-Hall.

Gaya MLA

Bold, Harold, C., W., La, Claire,, John. "The plant kingdom". 5th.ed. Englewood Cliffs: Prentice-Hall, 1987. Text.