APA

Cotton R. T., . (1998). Exercise for older adults. San Diego: American Council on Exercise.

Chicago

Cotton Richard T, . 1998. Exercise for older adults. San Diego: American Council on Exercise.

Harvard

Cotton R. T., . (1998). Exercise for older adults. San Diego: American Council on Exercise.

MLA

Cotton Richard T, . Exercise for older adults. San Diego: American Council on Exercise. 1998.