Gaya APA
Nasional, B, S. (2008).
Tata cara pengambilan contoh uji beton segar .
Jakarta:
South-Western College Publishing.
Gaya MLA
Nasional, Badan, Standarisasi.
"Tata cara pengambilan contoh uji beton segar".
Jakarta:
South-Western College Publishing,
2008.
Text.