Ardrey, R., & Ardrey, B. (1966). The territorial imperative: A personal inquiry into the animal origins of property and nations. Collins.
Chicago Style (17th ed.) CitationArdrey, Robert, and Berdine Ardrey. The Territorial Imperative: A Personal Inquiry into the Animal Origins of Property and Nations. London: Collins, 1966.
MLA (9th ed.) CitationArdrey, Robert, and Berdine Ardrey. The Territorial Imperative: A Personal Inquiry into the Animal Origins of Property and Nations. Collins, 1966.
Warning: These citations may not always be 100% accurate.