APA

Abrams M., Gustaferro A., . (1976). Fire endurance of two-course floors and roofs. ( Journal of the American Concrete Institute. Vol 66, 1969, s 92-102). Skokie, IL: Portland Cement Association. RD bulletin nr RD048.01B.

Chicago

Abrams MS, Gustaferro AH, . 1976. Fire endurance of two-course floors and roofs. ( Journal of the American Concrete Institute. Vol 66, 1969, s 92-102). Skokie, IL: Portland Cement Association. RD bulletin nr RD048.01B.

Harvard

Abrams M., Gustaferro A., . (1976). Fire endurance of two-course floors and roofs. ( Journal of the American Concrete Institute. Vol 66, 1969, s 92-102). Skokie, IL: Portland Cement Association. RD bulletin nr RD048.01B.

MLA

Abrams MS, Gustaferro AH, . Fire endurance of two-course floors and roofs. ( Journal of the American Concrete Institute. Vol 66, 1969, s 92-102). Skokie, IL: Portland Cement Association. RD bulletin nr RD048.01B. 1976.