Hillier, H. G. (1974). Hilliers' manual of trees & shrubs (4th ed.). Hillier Nurseries.
Chicago Style (17th ed.) CitationHillier, Harold G. Hilliers' Manual of Trees & Shrubs. 4th ed. Winchester [England]: Hillier Nurseries, 1974.
MLA (9th ed.) CitationHillier, Harold G. Hilliers' Manual of Trees & Shrubs. 4th ed. Hillier Nurseries, 1974.
Warning: These citations may not always be 100% accurate.