Reader's Digest Association & Wernert, S. J. (1998). Reader's Digest North American wildlife (Updated ed.). Reader's Digest Association.
Chicago Style (17th ed.) CitationReader's Digest Association and Susan J. Wernert. Reader's Digest North American Wildlife. Updated ed. Pleasantville, N.Y.: Reader's Digest Association, 1998.
MLA引文Reader's Digest Association and Susan J. Wernert. Reader's Digest North American Wildlife. Updated ed. Reader's Digest Association, 1998.
警告:這些引文格式不一定是100%准確.