APA (7th ed.) Citation

Niini, H. (1968). A study of rock fracturing in valleys of Precambrian bedrock.

Chicago Style (17th ed.) Citation

Niini, Heikki. A Study of Rock Fracturing in Valleys of Precambrian Bedrock. Helsinki, 1968.

MLA (9th ed.) Citation

Niini, Heikki. A Study of Rock Fracturing in Valleys of Precambrian Bedrock. 1968.

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