Cita APA (7th ed.)

Lagemann, R. T. (1969). Physical science; origin and principles (2nd ed.). Brown.

Cita Chicago (17th ed.)

Lagemann, Robert T. Physical Science; Origin and Principles. 2nd ed. Boston: Brown, 1969.

Cita MLA (9th ed.)

Lagemann, Robert T. Physical Science; Origin and Principles. 2nd ed. Brown, 1969.