TY  - BOOK
AU  - MacKenzie,Ossian
AU  - Christensen,Edward L.
AU  - Rigby,Paul H.
ED  - American Council on Education.
ED  - National Commission on Accrediting.
TI  - Correspondence instruction in the United States: a study of what it is, how it functions, and what its potential may be
T2  - The Carnegie series in American education
AV  - LC5951 .M3 1968
U1  - 374/.473 
PY  - 1968///]
CY  - New York
PB  - McGraw-Hill
KW  - Correspondence schools and courses
KW  - United States
KW  - Local
N1  - Study sponsored by the American Council on Education and the National Commission on Accrediting; Bibliography: p. 59-63
ER  -