Harrison, P. (1983). Seabirds: An identification guide. Croom Helm LTD..
Chicago Edition CitationHarrison, Peter. Seabirds: An Identification Guide. Beckenhame: Croom Helm LTD., 1983.
MLA Edition CitationHarrison, Peter. Seabirds: An Identification Guide. Croom Helm LTD., 1983.
Warning: These citations may not always be 100% accurate.