APA (7th ed.) Citation

Sheather, G. D. (1969). North and central Great Lakes region: A general systems theory analysis.

Chicago Style (17th ed.) Citation

Sheather, G. D. North and Central Great Lakes Region: A General Systems Theory Analysis. Athens, 1969.

MLA (9th ed.) Citation

Sheather, G. D. North and Central Great Lakes Region: A General Systems Theory Analysis. 1969.

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