American Society for Testing and Materials. (1998). ASTM directory of scientific & technical consultants & expert witnesses (1998 - 99 ed.).
Chicago-Zitierstil (17. Ausg.)American Society for Testing and Materials. ASTM Directory of Scientific & Technical Consultants & Expert Witnesses. 1998 - 99 ed. West Conshohocken, Pa, 1998.
MLA-Zitierstil (9. Ausg.)American Society for Testing and Materials. ASTM Directory of Scientific & Technical Consultants & Expert Witnesses. 1998 - 99 ed. 1998.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.