APA (7th ed.) Citation

Ottersen, O. (1966). Those most important years: Christian training in early childhood. Augsburg Pub. House.

Chicago Style (17th ed.) Citation

Ottersen, Ottar. Those Most Important Years: Christian Training in Early Childhood. Minneapolis: Augsburg Pub. House, 1966.

MLA (9th ed.) Citation

Ottersen, Ottar. Those Most Important Years: Christian Training in Early Childhood. Augsburg Pub. House, 1966.