APA (7th ed.) Citation

Wittmer, D. S., & Petersen, S. H. (2010). Infant and toddler development and responsive program planning: A relationship-based approach (2. ed.). Pearson.

Chicago Style (17th ed.) Citation

Wittmer, Donna S., and Sandra H. Petersen. Infant and Toddler Development and Responsive Program Planning: A Relationship-based Approach. 2. ed. Boston ; Munich [u.a.]: Pearson, 2010.

MLA (9th ed.) Citation

Wittmer, Donna S., and Sandra H. Petersen. Infant and Toddler Development and Responsive Program Planning: A Relationship-based Approach. 2. ed. Pearson, 2010.