APA (7e ed.) Bronvermelding

Champion, H. (2023). An investigation of certain factors concerning the resin-tapping industry in Pinus longifolia. Superintendent Government Printing.

Chicago (17e ed.) Bronvermelding

Champion, H.G. An Investigation of Certain Factors Concerning the Resin-tapping Industry in Pinus Longifolia. Superintendent Government Printing, 2023.

MLA (9e ed.) Bronvermelding

Champion, H.G. An Investigation of Certain Factors Concerning the Resin-tapping Industry in Pinus Longifolia. Superintendent Government Printing, 2023.

Let op: Deze citaties zijn niet altijd 100% accuraat.