Cita APA

Johnston, J. (1990). Contents point C: Science, mathematics, and social studies activities. Reading: Addison-Wesley.

Citación estilo Chicago

Johnston, Jean. Contents Point C: Science, Mathematics, and Social Studies Activities. Reading: Addison-Wesley, 1990.

Cita MLA

Johnston, Jean. Contents Point C: Science, Mathematics, and Social Studies Activities. Reading: Addison-Wesley, 1990.

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