APA (7th ed.) Citation

(1990). Disorders of the lumbar spine. Aspen [u.a.].

Chicago Style (17th ed.) Citation

Disorders of the Lumbar Spine. Rockville, Maryland: Aspen [u.a.], 1990.

MLA (9th ed.) Citation

Disorders of the Lumbar Spine. Aspen [u.a.], 1990.

Warning: These citations may not always be 100% accurate.