Cita APA

Hellwig, G. (1964). Differential operators of mathematical physics. Addison – Wesley.

Citación estilo Chicago

Hellwig, Gunter. Differential Operators of Mathematical Physics. Addison – Wesley, 1964.

Cita MLA

Hellwig, Gunter. Differential Operators of Mathematical Physics. Addison – Wesley, 1964.

Precaución: Estas citas no son 100% exactas.