Gaya APA

Walker, Richard. (2003). Genes & DNA (cet. 1). Boston: Kingfisher.

Gaya Chicago

Walker, Richard. Genes & DNA. cet. 1 Boston: Kingfisher, 2003. Text.

Gaya MLA

Walker, Richard. Genes & DNA. cet. 1 Boston: Kingfisher, 2003. Text.

Gaya Turabian

Walker, Richard. Genes & DNA. cet. 1 Boston: Kingfisher, 2003. Print.