Geoffrey Keppel. (1982). Design and analysis: A researcher's handbook. Englewood Cliffs, New Jersey: Prentice-Hall.
Trích dẫn kiểu ChicagoGeoffrey Keppel. Design and Analysis: A Researcher's Handbook. Englewood Cliffs, New Jersey: Prentice-Hall, 1982.
MLA引文Geoffrey Keppel. Design and Analysis: A Researcher's Handbook. Englewood Cliffs, New Jersey: Prentice-Hall, 1982.
警告:這些引文格式不一定是100%准確.