APA

Kaltenborn F. M., . (1993). <The >spine. Minneapolis: OPTP.

Chicago

Kaltenborn Freddy M, . 1993. <The >spine. Minneapolis: OPTP.

Harvard

Kaltenborn F. M., . (1993). <The >spine. Minneapolis: OPTP.

MLA

Kaltenborn Freddy M, . <The >spine. Minneapolis: OPTP. 1993.