Cita APA (7th ed.)

Spock, B. (1979). Baby and child care: Completely updated and revised for today's parents. W. H. Allen and Co. Ltd.

Cita Chicago (17th ed.)

Spock, Benjamin. Baby and Child Care: Completely Updated and Revised for Today's Parents. Londres: W. H. Allen and Co. Ltd, 1979.

Cita MLA (9th ed.)

Spock, Benjamin. Baby and Child Care: Completely Updated and Revised for Today's Parents. W. H. Allen and Co. Ltd, 1979.