APA-viite

Serpell, J. (1991). Beneficial effects of pet ownership on some aspects of human health and behaviour.

Chicago-tyylinen lähdeviittaus

Serpell, J. Beneficial Effects of Pet Ownership On Some Aspects of Human Health and Behaviour. 1991.

MLA-viite

Serpell, J. Beneficial Effects of Pet Ownership On Some Aspects of Human Health and Behaviour. 1991.

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