Philip McCallion
Greta Sumner
Lenard W. Kaye
Leon A. Pastalan
Isaac Green
Leonard Heumann
Doris K. Williams
Rosemary Rengers
Southern Conference on Gerontology (27th 1978 University of Florida)
Philip D. Sloane
Unknown Author
Benyamin Schwarz
Benjamin W. Pearce
United States. General Accounting Office
Great Britain. Ministry of Housing and Local Government.
Mayumi Hayashi
Jane Porcino
Kelvin Teo