Programmed materials in high school correspondence courses
By: [by] Douglas D. Sjogren.
Contributors: University of Nebraska (Lincoln campus)
Publisher: University of Nebraska
Published: 1963
Place of publication: [Lincoln]
Language: eng
Number of pages: 77
Subjects: Correspondence schools and courses.; Programmed instruction.
Notes: Bibliography:  leaves [76]-77.
Cooperative research project no. 1534, with the U. S. Office of Education.