Dyfyniad APA

Walker,Helen M, & Lev,Joseph. (1974). Elementary Statistical Methods (Revised Ed.). Oxford & IBH pub. Com.

Dyfyniad Arddull Chicago

Walker,Helen M, and Lev,Joseph. Elementary Statistical Methods. Revised Ed. Newdelhi: Oxford & IBH pub. Com, 1974.

Dyfyniad MLA

Walker,Helen M, and Lev,Joseph. Elementary Statistical Methods. Revised Ed. Oxford & IBH pub. Com, 1974.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.