APA

Pfeiffer H. A., . (1948). The catholic picture dictionary. n.p: Catholic Manufacturing Co.

Chicago

Pfeiffer Harold A, . 1948. The catholic picture dictionary. n.p: Catholic Manufacturing Co.

Harvard

Pfeiffer H. A., . (1948). The catholic picture dictionary. n.p: Catholic Manufacturing Co.

MLA

Pfeiffer Harold A, . The catholic picture dictionary. n.p: Catholic Manufacturing Co. 1948.