Stone, L. J., Murphy, L. B., & Smith, H. T. (1973). The competent infant: Research and commentary. Basic Books.
Dyfyniad Arddull ChicagoStone, Lawrence Joseph, Lois Barclay Murphy, and Henrietta T. Smith. The Competent Infant: Research and Commentary. New York: Basic Books, 1973.
Dyfyniad MLAStone, Lawrence Joseph, et al. The Competent Infant: Research and Commentary. Basic Books, 1973.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.