Citace podle APA (7th ed.)
WALKER, A., & WARREN, L. (1997). CHANGING SERVICES FOR OLDER PEOPLE. OPEN UNIVERSITY PRESS.
Citace podle Chicago (17th ed.)
WALKER, A., a L. WARREN. CHANGING SERVICES FOR OLDER PEOPLE. BUCKINGHAM (UK): OPEN UNIVERSITY PRESS, 1997.
Citace podle MLA (9th ed.)
WALKER, A., a L. WARREN. CHANGING SERVICES FOR OLDER PEOPLE. OPEN UNIVERSITY PRESS, 1997.
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