APA (7th ed.) Zitazioa
International Correspondence Schools. Reference Library. Stone and Brick, Cementing Materials and Mortar, Stone and Brick Masonry, Plain Concrete, Foundations, Retaining Walls, Culverts, Tunnels, Dams, Introduction to Construction Drawing. International Textbook.
Chicago Style (17th ed.) Zitazioa
International Correspondence Schools. Reference Library. Stone and Brick, Cementing Materials and Mortar, Stone and Brick Masonry, Plain Concrete, Foundations, Retaining Walls, Culverts, Tunnels, Dams, Introduction to Construction Drawing. Scranton, EUA: International Textbook.
MLA (9th ed.) Zitazioa
International Correspondence Schools. Reference Library. Stone and Brick, Cementing Materials and Mortar, Stone and Brick Masonry, Plain Concrete, Foundations, Retaining Walls, Culverts, Tunnels, Dams, Introduction to Construction Drawing. International Textbook.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.