Cita APA

Harvey, W. C., & Hill, H. (1952). Food hygiene.

Chicago Edition Citation

Harvey, Wm Clunieand, i Harry Hill. Food Hygiene. 1952.

Cita MLA

Harvey, Wm Clunieand, i Harry Hill. Food Hygiene. 1952.

Atenció: Aquestes cites poden no estar 100% correctes.