Harrison, C. J. O. (1975). A field guide to the nests, eggs, and nestlings of British and European birds.
Chicago Style (17th ed.) CitationHarrison, Colin James Oliver. A Field Guide to the Nests, Eggs, and Nestlings of British and European Birds. 1975.
MLA (9th ed.) CitationHarrison, Colin James Oliver. A Field Guide to the Nests, Eggs, and Nestlings of British and European Birds. 1975.
Warning: These citations may not always be 100% accurate.