Cita APA (7a ed.)

Orford, H. (1896). Modern optical instruments and their construction. Sir Isaac Pitman & Sons.

Cita Chicago Style (17a ed.)

Orford, Henry. Modern Optical Instruments and Their Construction. London [etc.]: Sir Isaac Pitman & Sons, 1896.

Cita MLA (9a ed.)

Orford, Henry. Modern Optical Instruments and Their Construction. Sir Isaac Pitman & Sons, 1896.