APA-viite (7. p.)
ebrary, Inc, & Calkins, E. (1999). New ways to care for older people: Building systems based on evidence. Springer Pub..
Chicago-viite (17. p.)
ebrary, Inc, ja Evan Calkins. New Ways to Care for Older People: Building Systems Based on Evidence. New York: Springer Pub., 1999.
MLA-viite (9. p.)
ebrary, Inc, ja Evan Calkins. New Ways to Care for Older People: Building Systems Based on Evidence. Springer Pub., 1999.
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