Παραπομπή APA

Weisberg, H. F. (1977). Introduction to survey research and data analysis. W H Freeman and company.

Παραπομπή Chicago Style

Weisberg, Herbert F. Introduction to Survey Research and Data Analysis. San Francisco: W H Freeman and company, 1977.

Παραπομπή MLA

Weisberg, Herbert F. Introduction to Survey Research and Data Analysis. W H Freeman and company, 1977.