Crabb, G. (1976). Copyright and contract. Council for Educational Technology for the United Kingdom ; Jordanhill College of Education.
Chicago Style (17. basım) AtıfCrabb, Geoffrey. Copyright and Contract. London : [Glasgow]: Council for Educational Technology for the United Kingdom ; Jordanhill College of Education, 1976.
MLA (8th ed.) AtıfCrabb, Geoffrey. Copyright and Contract. Council for Educational Technology for the United Kingdom ; Jordanhill College of Education, 1976.
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