Happer, F. N. (1987). Royal botanic gardens: Kew gardens science r pleasure. Her Majestys Stationery Office.
Chicago Style (17th ed.) CitationHapper, F. Nigel. Royal Botanic Gardens: Kew Gardens Science R Pleasure. Her Majestys Stationery Office, 1987.
ציטוט MLAHapper, F. Nigel. Royal Botanic Gardens: Kew Gardens Science R Pleasure. Her Majestys Stationery Office, 1987.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.