Pacific Northwest Laboratory & Washington State Law Enforcement Officers Training Commission. (1970). A study of state-wide training facilities for Washington law enforcement officers: To Washington Law Enforcement Officers Training Commission (Rev.).
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Pacific Northwest Laboratory và Washington State Law Enforcement Officers Training Commission. A Study of State-wide Training Facilities for Washington Law Enforcement Officers: To Washington Law Enforcement Officers Training Commission. Rev. Richland, Wash, 1970.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)Pacific Northwest Laboratory và Washington State Law Enforcement Officers Training Commission. A Study of State-wide Training Facilities for Washington Law Enforcement Officers: To Washington Law Enforcement Officers Training Commission. Rev. 1970.