APA (7th ed.) Citation

Udry, J. M. (1956). A tree is nice. Harper.

Chicago Style (17th ed.) Citation

Udry, Janice May. A Tree Is Nice. [S.l.]: Harper, 1956.

MLA (9th ed.) Citation

Udry, Janice May. A Tree Is Nice. Harper, 1956.

Warning: These citations may not always be 100% accurate.