APA-ийн эшлэл(7 дахь хэвлэлт)

Ellwood, E., & Dale, F. (1957). Tests on the development of clean preservative treatments for crossarms (Progress report no.1) Oil treatments. Forest Products Laboratory.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Ellwood, E.L, ба F.A Dale. Tests on the Development of Clean Preservative Treatments for Crossarms (Progress Report No.1) Oil Treatments. Australlia: Forest Products Laboratory, 1957.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Ellwood, E.L, ба F.A Dale. Tests on the Development of Clean Preservative Treatments for Crossarms (Progress Report No.1) Oil Treatments. Forest Products Laboratory, 1957.