APA Edition Citation

Harkema R. (1971). SImultaneous Equations (1971.). Rotterdam University Press.

Chicago Edition Citation

Harkema R. SImultaneous Equations. 1971. Belgium: Rotterdam University Press, 1971.

MLA Edition Citation

Harkema R. SImultaneous Equations. 1971. Rotterdam University Press, 1971.

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