APA (7th ed.) Citation

Butler, M. E., & Butler, G. (1903). Mary Emma Butler papers.

Chicago Style (17th ed.) Citation

Butler, Mary Emma, and Guy Butler. Mary Emma Butler Papers. 1903.

MLA (9th ed.) Citation

Butler, Mary Emma, and Guy Butler. Mary Emma Butler Papers. 1903.

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