Παραπομπή APA

Norwalk, M. (1978). Pressure cooking and other methods of fuel-saving cookery. Penhambook.

Παραπομπή Chicago Style

Norwalk, Mary. Pressure Cooking and Other Methods of Fuel-saving Cookery. London: Penhambook, 1978.

Παραπομπή MLA

Norwalk, Mary. Pressure Cooking and Other Methods of Fuel-saving Cookery. Penhambook, 1978.