WILSON, R. (1938). WILSON COLOUR CHART. Vol.1 ((Horticultural Colour Chart).
Chicago Style aipamenaWILSON, Robert.F. WILSON COLOUR CHART. Vol.1 ((Horticultural Colour Chart). 1938.
MLA aipamenaWILSON, Robert.F. WILSON COLOUR CHART. Vol.1 ((Horticultural Colour Chart). 1938.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.