APA (7e ed.) Bronvermelding

Royal Horticultural Society (Great Britain) & Hay, R. (1974). The dictionary of house plants. McGraw-Hill.

Chicago (17e ed.) Bronvermelding

Royal Horticultural Society (Great Britain) en Roy Hay. The Dictionary of House Plants. New York: McGraw-Hill, 1974.

MLA (9e ed.) Bronvermelding

Royal Horticultural Society (Great Britain) en Roy Hay. The Dictionary of House Plants. McGraw-Hill, 1974.