Cita APA (7th ed.)

Gould, G. W. (1999). New methods of food preservation. Aspen.

Cita Chicago (17th ed.)

Gould, G. W. New Methods of Food Preservation. Dallas: Aspen, 1999.

Cita MLA (9th ed.)

Gould, G. W. New Methods of Food Preservation. Aspen, 1999.