Cita APA

Norton, A., & Norton, P. (1978). Spring Books: A mere matter of words.

Chicago Style Citation

Norton, Alan, i Patricia Norton. Spring Books: A Mere Matter of Words. 1978.

Cita MLA

Norton, Alan, i Patricia Norton. Spring Books: A Mere Matter of Words. 1978.

Atenció: Aquestes cites poden no estar 100% correctes.