APA (7th ed.) Citation
Feil, N. (1993). The validation breakthrough: Simple techniques for communicating with people with "Alzheimer's-type dementia". Health Professions Press.
Chicago Style (17th ed.) Citation
Feil, Naomi. The Validation Breakthrough: Simple Techniques for Communicating with People with "Alzheimer's-type Dementia". Baltimore: Health Professions Press, 1993.
MLA (9th ed.) Citation
Feil, Naomi. The Validation Breakthrough: Simple Techniques for Communicating with People with "Alzheimer's-type Dementia". Health Professions Press, 1993.
Warning: These citations may not always be 100% accurate.