Cita APA (7a ed.)

Parks, S. (1986). Make every step count: Birth to one. Vort.

Cita Chicago Style (17a ed.)

Parks, Stephanie. Make Every Step Count: Birth to One. Palo Alto: Vort, 1986.

Cita MLA (9a ed.)

Parks, Stephanie. Make Every Step Count: Birth to One. Vort, 1986.