Cita APA

Eigen, L. D. (1959). The construction of frames of an automated teaching program. Center for Programed Instruction.

Citación estilo Chicago

Eigen, Lewis D. The Construction of Frames of an Automated Teaching Program. N.Y.: Center for Programed Instruction, 1959.

Cita MLA

Eigen, Lewis D. The Construction of Frames of an Automated Teaching Program. Center for Programed Instruction, 1959.