APA (7th ed.) Citation
WILLIS, S., & ET AL. (1998). SOCIETAL MECHANISMS FOR MAINTAINING COMPETENCE IN OLD AGE. SPRINGER.
Chicago Style (17th ed.) Citation
WILLIS, S.L, and ET AL. SOCIETAL MECHANISMS FOR MAINTAINING COMPETENCE IN OLD AGE. NUEVA YORK: SPRINGER, 1998.
MLA (9th ed.) Citation
WILLIS, S.L, and ET AL. SOCIETAL MECHANISMS FOR MAINTAINING COMPETENCE IN OLD AGE. SPRINGER, 1998.
Warning: These citations may not always be 100% accurate.