APA

Spear M. E., . (1969). Practical charting techniques. New York: McGraw-Hill.

Chicago

Spear Mary Eleanor, . 1969. Practical charting techniques. New York: McGraw-Hill.

Harvard

Spear M. E., . (1969). Practical charting techniques. New York: McGraw-Hill.

MLA

Spear Mary Eleanor, . Practical charting techniques. New York: McGraw-Hill. 1969.