Dyfyniad APA

Sommer, J. A. (1950). School attitudes for youth. Queen's Work.

Dyfyniad Arddull Chicago

Sommer, Joseph A. School Attitudes for Youth. St. Louis, Mo.: Queen's Work, 1950.

Dyfyniad MLA

Sommer, Joseph A. School Attitudes for Youth. Queen's Work, 1950.

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