APA (7th ed.) Citation

Hellevik, O. (1988). Introduction to causal analysis: Exploring survey data by crosstabulation (2. ed.). Norwegian Univ. Press.

Chicago Style (17th ed.) Citation

Hellevik, Ottar. Introduction to Causal Analysis: Exploring Survey Data by Crosstabulation. 2. ed. Oslo: Norwegian Univ. Press, 1988.

MLA (9th ed.) Citation

Hellevik, Ottar. Introduction to Causal Analysis: Exploring Survey Data by Crosstabulation. 2. ed. Norwegian Univ. Press, 1988.