Wentland, E. J., & Smith, K. W. [ca. 1993]. Survey responses : an evaluation of their validity [Book]. San Diego, Calif. [u.a.]: Academic Press.

WENTLAND, Ellen J. und SMITH, Kent W., 1993. Survey responses : an evaluation of their validity. San Diego, Calif. [u.a.]: Academic Press. ISBN 0127440305.

Wentland, E. J., und K. W. Smith. Survey responses : an evaluation of their validity. book, Academic Press, 1993.

Wentland, Ellen J./Smith, Kent W.: Survey responses : an evaluation of their validity, San Diego, Calif. [u.a.] 1993.

Wentland, E.J. und Smith, K.W. (1993), Survey responses : an evaluation of their validity, Bd. , Academic Press, San Diego, Calif. [u.a.].