APA (7th ed.) Citation

Schulz, C. M. (1975). You've got to be kidding, Snoopy! Fawcett Books.

Chicago Style (17th ed.) Citation

Schulz, Charles M. You've Got to Be Kidding, Snoopy! Greenwich, Conn.: Fawcett Books, 1975.

MLA (9th ed.) Citation

Schulz, Charles M. You've Got to Be Kidding, Snoopy! Fawcett Books, 1975.