Cita APA (7th ed.)

Karplus, R., & Thier, H. (1967). A new look at elementary school science: Science curriculum improvement study. Rand McNally.

Cita Chicago (17th ed.)

Karplus, Robert, i H.D Thier. A New Look at Elementary School Science: Science Curriculum Improvement Study. Chicago: Rand McNally, 1967.

Cita MLA (9th ed.)

Karplus, Robert, i H.D Thier. A New Look at Elementary School Science: Science Curriculum Improvement Study. Rand McNally, 1967.