Robertson, N. (1958). Air structures for school sports: A report from educational facilities laboratories. EFL Publications.
Chicago-viite (17. p.)Robertson, Nan. Air Structures for School Sports: A Report from Educational Facilities Laboratories. New York: EFL Publications, 1958.
MLA-viite (9. p.)Robertson, Nan. Air Structures for School Sports: A Report from Educational Facilities Laboratories. EFL Publications, 1958.
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