APA (7th ed.) Citation

Vilkka, L. (1995). The varieties of intrinsic value in nature: A naturistic approach to environmental philosophy. Univ. of Helsinki.

Chicago Style (17th ed.) Citation

Vilkka, Leena. The Varieties of Intrinsic Value in Nature: A Naturistic Approach to Environmental Philosophy. Helsinki: Univ. of Helsinki, 1995.

MLA (9th ed.) Citation

Vilkka, Leena. The Varieties of Intrinsic Value in Nature: A Naturistic Approach to Environmental Philosophy. Univ. of Helsinki, 1995.