D., G., R., Cinthea, V.(1986).The Biology cology book / Robert D. Griffin; illustrated by Cinthea Vadala .New York:Harper Perennial.
Gaya MLA
Griffin, Robert, D.., Vadala, Cinthea."The Biology cology book / Robert D. Griffin; illustrated by Cinthea Vadala".New York:Harper Perennial,1986.Textbook.