Cita APA (7th ed.)

Cronin, D., & Lewin, B. (2001). Click, clack, moo: Cows that type. Scholastic.

Cita Chicago (17th ed.)

Cronin, Doreen, i Betsy Lewin. Click, Clack, Moo: Cows That Type. New York: Scholastic, 2001.

Cita MLA (9th ed.)

Cronin, Doreen, i Betsy Lewin. Click, Clack, Moo: Cows That Type. Scholastic, 2001.