APA (7th ed.) Citation

Høffding, H., & Fisher, G. M. (1906). The problems of philosophy. Macmillan.

Chicago Style (17th ed.) Citation

Høffding, Harald, and Galen Merriam Fisher. The Problems of Philosophy. New York: Macmillan, 1906.

MLA (9th ed.) Citation

Høffding, Harald, and Galen Merriam Fisher. The Problems of Philosophy. Macmillan, 1906.

Warning: These citations may not always be 100% accurate.