Tohutoro APA (7th ed.)
WENGER, G. (1992). HELP IN OLD AGE - FACING UP TO CHANGE. A LONGITUDINAL NETWORK STUDY. LIVERPOOL UNIVERSITY PRESS.
Tohutoru Kātū Chicago (17th ed.)
WENGER, G.C. HELP IN OLD AGE - FACING UP TO CHANGE. A LONGITUDINAL NETWORK STUDY. LIVERPOOL (UK): LIVERPOOL UNIVERSITY PRESS, 1992.
Tohutoro MLA (9th ed.)
WENGER, G.C. HELP IN OLD AGE - FACING UP TO CHANGE. A LONGITUDINAL NETWORK STUDY. LIVERPOOL UNIVERSITY PRESS, 1992.
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