Barna, G. (1992). The Barna report 1992-93: An annual survey of ... Regal books.
Style de citation Chicago (17e éd.)Barna, George. The Barna Report 1992-93: An Annual Survey of ... Ventura: Regal books, 1992.
Style de citation MLA (9e éd.)Barna, George. The Barna Report 1992-93: An Annual Survey of ... Regal books, 1992.
Attention : ces citations peuvent ne pas être correctes à 100%.