Perk, L. J. (1977). Secondary Publications in Education: A Study of Duplication.
Chicago Style (17th ed.) CitationPerk, Lawrence J. Secondary Publications in Education: A Study of Duplication. 1977.
MLA (9th ed.) CitationPerk, Lawrence J. Secondary Publications in Education: A Study of Duplication. 1977.
Warning: These citations may not always be 100% accurate.