APA

Downie N. M., Heath R. W. & Harper & Row Publishers. (1974). Basic statistical methods. Cambridge: Harper & Row, Publishers.

Chicago

Downie Norville Morgan, Heath R W and Harper & Row Publishers. 1974. Basic statistical methods. Cambridge: Harper & Row, Publishers.

Harvard

Downie N. M., Heath R. W. and Harper & Row Publishers. (1974). Basic statistical methods. Cambridge: Harper & Row, Publishers.

MLA

Downie Norville Morgan, Heath R W and Harper & Row Publishers. Basic statistical methods. Cambridge: Harper & Row, Publishers. 1974.