Semeonoff, B. (1976). Projective techniques. John Wiley & Sons.
Dyfyniad Arddull ChicagoSemeonoff, Boris. Projective Techniques. London: John Wiley & Sons, 1976.
Dyfyniad MLASemeonoff, Boris. Projective Techniques. John Wiley & Sons, 1976.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.