Gaya APA
Ettinger, W, H., N, I, W, B, S, I, B, S. (2006).
Fitness after 50 .
Champaign:
Champaign: Human Kinetics, 2006.
Gaya MLA
Ettinger, Walter, H., N, I., Wright,, Brenda, S, Ii., Blair,, Steven.
"Fitness after 50".
Champaign:
Champaign: Human Kinetics, 2006,
2006.
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