Releases by E J Dortignac

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Cover for E J Dortignac · Infiltration Studies on Ponderosa Pine Ranges of Colorado; no.59 (Paperback Book) (2021)

Infiltration Studies on Ponderos... (2021)

Cover for E J Dortignac · Design and Operation of Rocky Mountain Infiltrometer; no.5 (Paperback Book) (2021)

Design and Operation of Rocky Mo... (2021)