APA Edition Citation

Kalervo Rankama. (1970). The Geologic Systems: The Precambrain. Interscience.

Chicago Edition Citation

Kalervo Rankama. The Geologic Systems: The Precambrain. New York: Interscience, 1970.

MLA Edition Citation

Kalervo Rankama. The Geologic Systems: The Precambrain. Interscience, 1970.

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