APA Citation

Sperry, W. L. (1968). Signs of these times. Freeport, N.Y.: Books for Libraries Press.

Chicago Style Citation

Sperry, Willard Learoyd. Signs of These Times. Freeport, N.Y.: Books for Libraries Press, 1968.

MLA Citation

Sperry, Willard Learoyd. Signs of These Times. Freeport, N.Y.: Books for Libraries Press, 1968.

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