APA (7th ed.) Citation

Kafka, F., David, O., & Glatzer, N. N. (1982). Letters to Ottla and the family. Schocken Books.

Chicago Style (17th ed.) Citation

Kafka, Franz, Ottilie David, and Nahum N. Glatzer. Letters to Ottla and the Family. New York: Schocken Books, 1982.

MLA (9th ed.) Citation

Kafka, Franz, et al. Letters to Ottla and the Family. Schocken Books, 1982.