Cita APA (7th ed.)
SIMON, G. (1986). THE NEXT STEP ON THE LADDER: ASSESSMENT AND MANAGEMENT OF CHILDREN WITH MULTIPLE HANDICAPS, 4TH ED. BRITISH INSTITUTE OF MENTAL HANDICAP.
Cita Chicago (17th ed.)
SIMON, G.B. THE NEXT STEP ON THE LADDER: ASSESSMENT AND MANAGEMENT OF CHILDREN WITH MULTIPLE HANDICAPS, 4TH ED. WORCESTERSHIRE (UK): BRITISH INSTITUTE OF MENTAL HANDICAP, 1986.
Cita MLA (9th ed.)
SIMON, G.B. THE NEXT STEP ON THE LADDER: ASSESSMENT AND MANAGEMENT OF CHILDREN WITH MULTIPLE HANDICAPS, 4TH ED. BRITISH INSTITUTE OF MENTAL HANDICAP, 1986.
Atenció: Aquestes cites poden no estar 100% correctes.