Probert, S. D., Marsden, J. P., & Holmes, T. W. (1971). Experimental method and measurement. Heinemann Educational Books.
Dyfyniad Arddull ChicagoProbert, S. D., J. P. Marsden, and T. W. Holmes. Experimental Method and Measurement. London: Heinemann Educational Books, 1971.
Dyfyniad MLAProbert, S. D., et al. Experimental Method and Measurement. Heinemann Educational Books, 1971.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.