George, L. K. (1990). Vulnerability and Social Factors. In Z. Harel, P. Ehrlich, & R. Hubbard (Eds.), Understanding and Serving Vulnerable Older Adults and Aged. New York: Springer.

George, L. K. “Vulnerability and Social Factors.” In Understanding and Serving Vulnerable Older Adults and Aged, edited by Z. Harel, P. Ehrlich, and R. Hubbard. New York: Springer, 1990.

George LK. Vulnerability and Social Factors. In: Harel Z, Ehrlich P, Hubbard R, editors. Understanding and Serving Vulnerable Older Adults and Aged. New York: Springer; 1990.

George, L. K. “Vulnerability and Social Factors.” Understanding and Serving Vulnerable Older Adults and Aged, edited by Z. Harel et al., Springer, 1990.

George LK. Vulnerability and Social Factors. In: Harel Z, Ehrlich P, Hubbard R, editors. Understanding and Serving Vulnerable Older Adults and Aged. New York: Springer; 1990.