D. D. Richards

Development of Time, Speed, and Distance Concepts

R. Siegler, D. D. Richards, D. Richards, 1979 .

The episodic memory model of conceptual development: An integrative viewpoint

D. D. Richards, Jaime Goldfarb, D. Richards, 1986 .

The role of the functionality rule in the categorization of well-defined concepts

D. D. Richards, Jaime Goldfarb, Andrea Richards, 1989 .

Very Young Children's Acquisition of Systematic Problem-solving Strategies.

R. Siegler, D. D. Richards, 1981 .

The Development of Two Concepts

Robert S. Siegler, D. Dean Richards, R. Siegler, 1983 .

Children's understandings of the attributes of life.

R. Siegler, D. D. Richards, R S Siegler, 1986, Journal of experimental child psychology.

The Effects of Context on Referential Communication Strategies.

D. D. Richards, Lisa D. Kahan, D. Richards, 1986 .

Effects of two types of familiarity on children's referential communication abilities

D. D. Richards, Lisa D. Kahan, D. Richards, 1985 .