Elias, M. F., & Elias, P. K. (1977). Basic processes in adult developmental psychology. Mosby.
Lua i Stíl Chicago (17ú heag.)Elias, Merrill F., agus Penelope K. Elias. Basic Processes in Adult Developmental Psychology. Saint Louis: Mosby, 1977.
Lua MLA (9ú heag.)Elias, Merrill F., agus Penelope K. Elias. Basic Processes in Adult Developmental Psychology. Mosby, 1977.
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