APA (7th ed.) Citation

Isoviita, P. (1977). On Dicranum drummondii and D. ontariense Musci ([Sonderdr.].).

Chicago Style (17th ed.) Citation

Isoviita, Pekka. On Dicranum Drummondii and D. Ontariense Musci. [Sonderdr.]. 1977.

MLA (9th ed.) Citation

Isoviita, Pekka. On Dicranum Drummondii and D. Ontariense Musci. [Sonderdr.]. 1977.

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