APA (7th ed.) Citation

Authors, T. Pioneer settlement Cooperative studies. American geogrsphical society.

Chicago Style (17th ed.) Citation

Authors, Twenty-Six. Pioneer Settlement Cooperative Studies. American geogrsphical society.

MLA (8th ed.) Citation

Authors, Twenty-Six. Pioneer Settlement Cooperative Studies. American geogrsphical society.

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