Crain, W. C. (1985). Theories of development: Concepts and applications (2. ed.). Prentice-Hall.
Cita Chicago Style (17a ed.)Crain, William C. Theories of Development: Concepts and Applications. 2. ed. Englewood Cliffs, N. J: Prentice-Hall, 1985.
Cita MLA (9a ed.)Crain, William C. Theories of Development: Concepts and Applications. 2. ed. Prentice-Hall, 1985.
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