APA (7th ed.) Citation

Engel, P. (1989). Folding the universe: Origami from angelfish to zen. Vintage Books.

Chicago Style (17th ed.) Citation

Engel, Peter. Folding the Universe: Origami from Angelfish to Zen. New York: Vintage Books, 1989.

MLA (9th ed.) Citation

Engel, Peter. Folding the Universe: Origami from Angelfish to Zen. Vintage Books, 1989.