1. 01. English Non Fiction Natural selection / by Gibson, J. Phil. Publication: New York : Chelsea House, 2009 . 112 p. : 25 cm. Date:2009 Availability: Copies available: (1), Actions:
2. 13. E-Book Natural selection (Charlottetown Rural ebook) by Gibson, J. Phil. Publication: New York : Chelsea, 2009 . Web site. , Title from Web page (viewed on June 19, 2009). Date:2009 Availability: Copies available: (1), Actions: