Our duties to the blind :
a paper /
presented by Helen Keller at the first annual meeting of the Massachusetts Association for Promoting the Interests of the Adult Blind, January fifth, 1904, Perkins Hall, Boston.

APA Citation

Keller, H., Massachusetts Association for Promoting the Interests of the Blind. (1904). Our duties to the blind: a paper. Boston: Todd.

MLA Citation

Keller, Helen, 1880-1968, and Massachusetts Association for Promoting the Interests of the Blind. Our Duties to the Blind: a Paper. Boston: Todd, 1904.

Warning: These citations may not always be complete (especially for serials).