Cita APA (7th ed.)

Lewin, T., & Lewin, B. (2012). Puffling patrol. Lee & Low Books.

Cita Chicago (17th ed.)

Lewin, Ted, i Betsy Lewin. Puffling Patrol. New York: Lee & Low Books, 2012.

Cita MLA (8th ed.)

Lewin, Ted, i Betsy Lewin. Puffling Patrol. Lee & Low Books, 2012.