Dyfyniad APA

Hutt, S. J., & Hutt, C. (1973). Early human development. Oxford University.

Dyfyniad Arddull Chicago

Hutt, S. John, and Corinne Hutt. Early Human Development. London: Oxford University, 1973.

Dyfyniad MLA

Hutt, S. John, and Corinne Hutt. Early Human Development. Oxford University, 1973.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.