APA (7th ed.) Citation

Keränen, R. (1982). Water level variations of Lake Oulujärvi, Finland.

Chicago Style (17th ed.) Citation

Keränen, Reijo. Water Level Variations of Lake Oulujärvi, Finland. Oulu, 1982.

MLA (9th ed.) Citation

Keränen, Reijo. Water Level Variations of Lake Oulujärvi, Finland. 1982.

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