Παραπομπή APA

WHO. (1994). Environmental health criteria; N.157: Hydroquinone. Geneva: WHO.

Παραπομπή Chicago Style

WHO. Environmental Health Criteria; N.157: Hydroquinone. Geneva: WHO, 1994.

Παραπομπή MLA

WHO. Environmental Health Criteria; N.157: Hydroquinone. Geneva: WHO, 1994.

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