APA

Gesell A. L., . (1930). The guidance of mental growth in infant and child. New York: MacMillan Company.

Chicago

Gesell Arnold Lucius, . 1930. The guidance of mental growth in infant and child. New York: MacMillan Company.

Harvard

Gesell A. L., . (1930). The guidance of mental growth in infant and child. New York: MacMillan Company.

MLA

Gesell Arnold Lucius, . The guidance of mental growth in infant and child. New York: MacMillan Company. 1930.