Cita APA

Duffy, F. R. (197). Exploring the Child's World. Philadelphia.

Chicago Style (17th ed.) Citation

Duffy, Francis R. Exploring the Child's World. Philadelphia, 197.

Cita MLA

Duffy, Francis R. Exploring the Child's World. Philadelphia, 197.

Atenció: Aquestes cites poden no estar 100% correctes.