APA

Looker A. C., Melton L. J., Borrud L. G. & Shepherd J. A. (20120817). Changes in femur neck bone density in US adults between 1988-1994 and 2005-2008: demographic patterns and possible determinants. : Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA.

Chicago

Looker A C, Melton L J, Borrud L G and Shepherd J A. 20120817. Changes in femur neck bone density in US adults between 1988-1994 and 2005-2008: demographic patterns and possible determinants. : Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA.

Harvard

Looker A. C., Melton L. J., Borrud L. G. and Shepherd J. A. (20120817). Changes in femur neck bone density in US adults between 1988-1994 and 2005-2008: demographic patterns and possible determinants. : Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA.

MLA

Looker A C, Melton L J, Borrud L G and Shepherd J A. Changes in femur neck bone density in US adults between 1988-1994 and 2005-2008: demographic patterns and possible determinants. : Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA. 20120817.