A. Heck

Decreasing children's risk taking on the playground.

A. Heck, J. Collins, L. Peterson, 2001, Journal of applied behavior analysis.

The Education of Exceptional Children

R. Goff, A. Heck, 1942 .

Chapter II: Conditions that Make Effective Guidance Possible1

W. R. Baller, Hans C. Gordon, A. Heck, 1942 .

Contributions of Research to the Classification, Promotion, Marking, and Certification of Pupils

A. Heck, 1938 .

Chapter I: General Problems of Philosophy and Administration in the Education of Exceptional Children

A. Heck, 1944 .