APA

Kuenzli A. E., . (1959). The phenomenological problem. New York: Harper.

Chicago

Kuenzli Alfred E, . 1959. The phenomenological problem. New York: Harper.

Harvard

Kuenzli A. E., . (1959). The phenomenological problem. New York: Harper.

MLA

Kuenzli Alfred E, . The phenomenological problem. New York: Harper. 1959.