APA (7th ed.) Citation

Summer, J. (1982). Food hygiene. do is right!3. Your promise and how to keep them clean. s.l.].

Chicago Style (17th ed.) Citation

Summer, J. Food Hygiene. Do Is Right!3. Your Promise and How to Keep Them Clean. [s.n: s.l.], 1982.

MLA (9th ed.) Citation

Summer, J. Food Hygiene. Do Is Right!3. Your Promise and How to Keep Them Clean. s.l.], 1982.