(1961). Principles of programming material for teaching machines and their relation to transfer of training: Title VII, Project number 538, National defense act of 1958, Grant number 7-37-088, Brown University / [by] Gerald R. Levin.
Čikaški stil citiranja (17. izdanje)Principles of Programming Material for Teaching Machines and Their Relation to Transfer of Training: Title VII, Project Number 538, National Defense Act of 1958, Grant Number 7-37-088, Brown University / [by] Gerald R. Levin. 1961.
MLA način citiranja (9. izdanje)Principles of Programming Material for Teaching Machines and Their Relation to Transfer of Training: Title VII, Project Number 538, National Defense Act of 1958, Grant Number 7-37-088, Brown University / [by] Gerald R. Levin. 1961.
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