APA

Persoon C., . (1967). Observationes mycologicae. New York: Johnson Reprint Corporation.

Chicago

Persoon C.h, . 1967. Observationes mycologicae. New York: Johnson Reprint Corporation.

Harvard

Persoon C., . (1967). Observationes mycologicae. New York: Johnson Reprint Corporation.

MLA

Persoon C.h, . Observationes mycologicae. New York: Johnson Reprint Corporation. 1967.