APA ציטוט

Teilhard de Chardin, P. (1973). On happiness ([1st U.S. ed.].). Harper & Row.

Chicago Style (17th ed.) Citation

Teilhard de Chardin, Pierre. On Happiness. [1st U.S. ed.]. New York: Harper & Row, 1973.

ציטוט MLA

Teilhard de Chardin, Pierre. On Happiness. [1st U.S. ed.]. Harper & Row, 1973.