Gaya APA

Mader, Sylvia S.. (1998). Biology (Sixth Edition). USA: Mc Graw Hill.

Gaya Chicago

Mader, Sylvia S.. Biology. Sixth Edition USA: Mc Graw Hill, 1998. Text.

Gaya MLA

Mader, Sylvia S.. Biology. Sixth Edition USA: Mc Graw Hill, 1998. Text.

Gaya Turabian

Mader, Sylvia S.. Biology. Sixth Edition USA: Mc Graw Hill, 1998. Print.