Black, P. M. (1980). Complete book of Orchid growing. Ward Lock Ltd..
Chicago Style aipamenaBlack, Peter Mckenzie. Complete Book of Orchid Growing. London: Ward Lock Ltd., 1980.
MLA aipamenaBlack, Peter Mckenzie. Complete Book of Orchid Growing. Ward Lock Ltd., 1980.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.