WANNACOTT T H. (1973). INTRODUCTORY STATISTICS FOR BUSINESS AND ECONOMICS (3RD.). JOHN WILEY AND SONS.
Chicago-viite (17. p.)WANNACOTT T H. INTRODUCTORY STATISTICS FOR BUSINESS AND ECONOMICS. 3RD. NEW JERSEY: JOHN WILEY AND SONS, 1973.
MLA-viite (9. p.)WANNACOTT T H. INTRODUCTORY STATISTICS FOR BUSINESS AND ECONOMICS. 3RD. JOHN WILEY AND SONS, 1973.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.