APA

MacFarland C., . (1976). Annual progress report to the world wildlife fund. : .

Chicago

MacFarland Craig, . 1976. Annual progress report to the world wildlife fund. : .

Harvard

MacFarland C., . (1976). Annual progress report to the world wildlife fund. : .

MLA

MacFarland Craig, . Annual progress report to the world wildlife fund. : . 1976.