APA (7th ed.) Citation

Lobsenz, N. M. (1959). The first book of national parks. F. Watts.

Chicago Style (17th ed.) Citation

Lobsenz, Norman M. The First Book of National Parks. New York: F. Watts, 1959.

MLA (9th ed.) Citation

Lobsenz, Norman M. The First Book of National Parks. F. Watts, 1959.