Cita APA (7a ed.)

Bowlby, J., Fry, M., & Ainsworth, M. D. S. (1965). Child care and the growth of love (2nd ed. based by permission of the World Health Organization on the report "Maternal care and mental health".). Penguin Books.

Cita Chicago Style (17a ed.)

Bowlby, John, Margery Fry, y Mary D. Salter Ainsworth. Child Care and the Growth of Love. 2nd ed. based by permission of the World Health Organization on the report "Maternal care and mental health". Harmondsworth [etc.]: Penguin Books, 1965.

Cita MLA (9a ed.)

Bowlby, John, et al. Child Care and the Growth of Love. 2nd ed. based by permission of the World Health Organization on the report "Maternal care and mental health". Penguin Books, 1965.