TY  - BOOK
AU  - Rama Krishnan, V., comp.
ED  - American Concrete Institute.
TI  - Concrete core test 1927-1977 with addendum for 1978-1989 an-notated / compiled by V. Rama Krishnan for ACI Committe 21-4 Evaluation of results of tests used to determine the stre-ngth of concrete
CY  - Detroit, Mich. : American Concrete Institute
ER  -