APA ציטוט

Hach company. (1991). Products for analysis 1991-92. USA: Hach company.

Trích dẫn kiểu Chicago

Hach company. Products for Analysis 1991-92. USA: Hach company, 1991.

ציטוט MLA

Hach company. Products for Analysis 1991-92. USA: Hach company, 1991.