Mottram, V. H. (1960). The physical basis of pesonality. Baltimore: Penguin Books.
Dyfyniad Arddull ChicagoMottram, V. H. The Physical Basis of Pesonality. Baltimore: Penguin Books, 1960.
Dyfyniad MLAMottram, V. H. The Physical Basis of Pesonality. Baltimore: Penguin Books, 1960.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.