Παραπομπή APA

(1990). 1991 Puget Sound Water Quality Management Plan: Adopted November 21, 1990. Seattle, WA: Puget Sound Water Quality Authority.

Παραπομπή Chicago Style

1991 Puget Sound Water Quality Management Plan: Adopted November 21, 1990. Seattle, WA: Puget Sound Water Quality Authority, 1990.

Παραπομπή MLA

1991 Puget Sound Water Quality Management Plan: Adopted November 21, 1990. Seattle, WA: Puget Sound Water Quality Authority, 1990.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.