Clever Hans (The horse of Mr. Von Osten): A contribution to experimental animal and human psychologyE-bookClever Hans (The horse of Mr. Von Osten): A contribution to experimental animal and human psychologydiCarl L. RahnValutazione: 0 su 5 stelle0 valutazioniSalva Clever Hans (The horse of Mr. Von Osten): A contribution to experimental animal and human psychology per dopo