Gaya APA

Institute, A, P. (2018). Design and Contruction of Large, Welded, Low-Pressure Storage Tanks (API STANDARD 620, Twelfth Edition, Oktober 2013, Addendum 1, November 2014, Addendum 2, April 2018) (Twelfth Edition, Oktober 2013). Washington: Washington DC : American Petroleum Inst.,.

Gaya MLA

Institute, American, Petroleum. "Design and Contruction of Large, Welded, Low-Pressure Storage Tanks (API STANDARD 620, Twelfth Edition, Oktober 2013, Addendum 1, November 2014, Addendum 2, April 2018)". Twelfth Edition, Oktober 2013 Washington: Washington DC : American Petroleum Inst.,, 2018. Text.