Cita APA

Feldman, R. S., & Robert S. Feldman. (2014). Development across the life span. Boston: Pearson.

Citación estilo Chicago

Feldman, Robert S., y Robert S. Feldman. Development Across the Life Span. Boston: Pearson, 2014.

Cita MLA

Feldman, Robert S., y Robert S. Feldman. Development Across the Life Span. Boston: Pearson, 2014.