American Society of Civil Engineers. Horizontal Directional Drilling Design Guideline Task Committee, Skonberg, E. R., & Muindi, T. M. (2014). Pipeline design for installation by horizontal directional drilling (Second edition.). American Society of Civil Engneers.
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Chicago-čujuhus (17. p.)
American Society of Civil Engineers. Horizontal Directional Drilling Design Guideline Task Committee, Eric R. Skonberg, juo Tennyson M. Muindi. Pipeline Design for Installation by Horizontal Directional Drilling. Second edition. Reston, Virginia: American Society of Civil Engneers, 2014.
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MLA-čujuhus (9. p.)
American Society of Civil Engineers. Horizontal Directional Drilling Design Guideline Task Committee, et al. Pipeline Design for Installation by Horizontal Directional Drilling. Second edition. American Society of Civil Engneers, 2014.
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