APA
Wong Ming H, Lee Frank W K, . (2006). Environmental principles and ethics : Textbook. New Jersey: World Scientific.
Chicago
Wong Ming H, Lee Frank W K, . 2006. Environmental principles and ethics : Textbook. New Jersey: World Scientific.
Harvard
Wong Ming H, Lee Frank W K, . (2006). Environmental principles and ethics : Textbook. New Jersey: World Scientific.
MLA
Wong Ming H, Lee Frank W K, . Environmental principles and ethics : Textbook. New Jersey: World Scientific. 2006.