APA

Vaske M. O., . (1963). An introduction to metaphysics. New York: McGraw-Hill.

Chicago

Vaske Martin O, . 1963. An introduction to metaphysics. New York: McGraw-Hill.

Harvard

Vaske M. O., . (1963). An introduction to metaphysics. New York: McGraw-Hill.

MLA

Vaske Martin O, . An introduction to metaphysics. New York: McGraw-Hill. 1963.