APA (7th ed.) Citation

(1931). Itasca County, Minnesota, the land 'o' lakes. s.n.].

Chicago Style (17th ed.) Citation

Itasca County, Minnesota, the Land 'O' Lakes. [Minnesota?: s.n.], 1931.

MLA (8th ed.) Citation

Itasca County, Minnesota, the Land 'O' Lakes. s.n.], 1931.

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