APA (7th ed.) Citation

Norman, C. (1961). So worthy a friend: William Shakespeare. Collier Books.

Chicago Style (17th ed.) Citation

Norman, Charles. So Worthy a Friend: William Shakespeare. Nueva York: Collier Books, 1961.

MLA (9th ed.) Citation

Norman, Charles. So Worthy a Friend: William Shakespeare. Collier Books, 1961.

Warning: These citations may not always be 100% accurate.