APA
Nussbaum P., Childs L., . (1975). Repetitive load tests of concrete slabs on cement-treated subbases. Skokie, IL: Portland Cement Association. Research and development bulletin RD025.01P.
Chicago
Nussbaum PJ, Childs LD, . 1975. Repetitive load tests of concrete slabs on cement-treated subbases. Skokie, IL: Portland Cement Association. Research and development bulletin RD025.01P.
Harvard
Nussbaum P., Childs L., . (1975). Repetitive load tests of concrete slabs on cement-treated subbases. Skokie, IL: Portland Cement Association. Research and development bulletin RD025.01P.
MLA
Nussbaum PJ, Childs LD, . Repetitive load tests of concrete slabs on cement-treated subbases. Skokie, IL: Portland Cement Association. Research and development bulletin RD025.01P. 1975.