441
20th annual ISA conference proceedings . 20,3 advances in instrumentation
Book
1965
442
20th annual ISA conference proceedings . 20,4 applications in industry and science
Book
1965
443
20th annual ISA conference proceedings . 20,1 Measurement standards instrumentation
Book
1965
444
20th Brazilian Conference on Materials Science and Engineering : selected, peer reviewed papers from the 20th Brazilian Conference on Materials Science and Engineering (CBECIMAT), November 4-8, 2012, Joinville, Santa Catarina [E-Book] /
445
20th ispe international conference on concurrent engineering : proceedings [E-Book] /
446
21.0 : eine kurze Geschichte der Gegenwart /
Book
447
448
449
450
21st Century C : [C tips from the new school] /
Book
451
21st Century Challenges in Chemical Crystallography. I. History and Technical Developments [E-Book]  /
452
21st Century Challenges in Chemical Crystallography. II. Structural Correlations and Data Interpretation [E-Book] /
453
21st Century Coal [E-Book]: Advanced Technology and Global Energy Solution /
454
A 21st century cyber-physical systems education [E-Book]
455
21st century innovation systems for Japan and the United States : lessons from a decade of change : report of a symposium [E-Book] /
456
21st Century Learning Environments [E-Book] /
457
21st Century Learning for 21st Century Skills [E-Book]: 7th European Conference of Technology Enhanced Learning, EC-TEL 2012, Saarbrücken, Germany, September 18-21, 2012. Proceedings /
458
459
21st Century Skills and Competences for New Millennium Learners in OECD Countries [E-Book] /
460
21st Century Technologies [E-Book]: Promises and Perils of a Dynamic Future /