APA (7e ed.) Bronvermelding
Current contents: Agriculture, biology and environmental sciences : 1998 annual. Institute for Scientific Information.
Chicago (17e ed.) Bronvermelding
Current Contents: Agriculture, Biology and Environmental Sciences : 1998 Annual. Filadelfia, EUA: Institute for Scientific Information.
MLA (9e ed.) Bronvermelding
Current Contents: Agriculture, Biology and Environmental Sciences : 1998 Annual. Institute for Scientific Information.
Let op: Deze citaties zijn niet altijd 100% accuraat.