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