APA

Ellis J. P., . (1961). The theory and operation of the slide rule. New York: Dover Publications.

Chicago

Ellis John P, . 1961. The theory and operation of the slide rule. New York: Dover Publications.

Harvard

Ellis J. P., . (1961). The theory and operation of the slide rule. New York: Dover Publications.

MLA

Ellis John P, . The theory and operation of the slide rule. New York: Dover Publications. 1961.