APA-ийн эшлэл(7 дахь хэвлэлт)
ebrary, Inc, & American Water Works Association. (2004). Developing rates for small systems. American Water Works Association.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)
ebrary, Inc, ба American Water Works Association. Developing Rates for Small Systems. [Denver Colo.]: American Water Works Association, 2004.
MLA -ийн эшлэл (9 дэх хэвлэлт)
ebrary, Inc, ба American Water Works Association. Developing Rates for Small Systems. American Water Works Association, 2004.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.