APA Citation

(1989). Pyrrolizidine alkaloids health and safety guide. Genewa: World Health Organization.

Chicago Style Citation

Pyrrolizidine Alkaloids Health and Safety Guide. Genewa: World Health Organization, 1989.

MLA Citation

Pyrrolizidine Alkaloids Health and Safety Guide. Genewa: World Health Organization, 1989.

Warning: These citations may not always be 100% accurate.