Cita APA (7a ed.)

Lovell, K., & Lovell, K. (1975). The growth of basic mathematical and scientific concepts in children (5th ed.). Hodder and Stoughton.

Cita Chicago Style (17a ed.)

Lovell, K., y K. Lovell. The Growth of Basic Mathematical and Scientific Concepts in Children. 5th ed. London: Hodder and Stoughton, 1975.

Cita MLA (8a ed.)

Lovell, K., y K. Lovell. The Growth of Basic Mathematical and Scientific Concepts in Children. 5th ed. Hodder and Stoughton, 1975.