APA

Graustein W. C., . (1947). Introduction to higher geometry. New York: The Macmillan Company.

Chicago

Graustein William C, . 1947. Introduction to higher geometry. New York: The Macmillan Company.

Harvard

Graustein W. C., . (1947). Introduction to higher geometry. New York: The Macmillan Company.

MLA

Graustein William C, . Introduction to higher geometry. New York: The Macmillan Company. 1947.