APA

Looker A. C., Melton L. J., Borrud L. G. & Shepherd J. A. (20120604). Lumbar spine bone mineral density in US adults: demographic patterns and relationship with femur neck skeletal status. : 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. 20120604. Lumbar spine bone mineral density in US adults: demographic patterns and relationship with femur neck skeletal status. : 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. (20120604). Lumbar spine bone mineral density in US adults: demographic patterns and relationship with femur neck skeletal status. : 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. Lumbar spine bone mineral density in US adults: demographic patterns and relationship with femur neck skeletal status. : Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA. 20120604.