APA

Natanson I., Born L. F., . (1961). Theory of functions of real variable. New York: Frederick Ungar publishing Co.

Chicago

Natanson I.P, Born Leo F, . 1961. Theory of functions of real variable. New York: Frederick Ungar publishing Co.

Harvard

Natanson I., Born L. F., . (1961). Theory of functions of real variable. New York: Frederick Ungar publishing Co.

MLA

Natanson I.P, Born Leo F, . Theory of functions of real variable. New York: Frederick Ungar publishing Co. 1961.