APA

Heer F, . (1968). The Intellectual History of Europe. New York: Anchor Books.

Chicago

Heer F, . 1968. The Intellectual History of Europe. New York: Anchor Books.

Harvard

Heer F, . (1968). The Intellectual History of Europe. New York: Anchor Books.

MLA

Heer F, . The Intellectual History of Europe. New York: Anchor Books. 1968.