Cita APA

(1969). Science activities: The teacher's guide classroom guide. Washington: Heldref.

Citación estilo Chicago

Science Activities: The Teacher's Guide Classroom Guide. Washington: Heldref, 1969.

Cita MLA

Science Activities: The Teacher's Guide Classroom Guide. Washington: Heldref, 1969.

Precaución: Estas citas no son 100% exactas.