| #11 | American gas. -- Arlington : American Gas Association, 1989-. -- ISSN 1043-0652 |
| #12 | The Annual report for... - International Atomic Energy Agency. -- Vienna : International Atomic Energy Agency, 1997-. -- ISSN 1564-2755 |
| #13 | Annual review of environment and resources. -- Palo Alto : Annual Reviews, 2003-. -- ISSN 1543-5938 print. -- ISSN 1545-2050 online |
| #14 | Applied energy. -- London : Applied Science Publishers, 1975-. -- ISSN 0306-2619 print. -- ISSN 1872-9118 online |
| #15 | Applied solar energy. -- New York : Allerton Press, 1965-. -- ISSN 0003-701X print. -- ISSN 1934-9424 online |
| #16 | Applied thermal engineering : Design - processes - equipment - economics. -- Amsterdam : Elsevier, 1996-. -- ISSN 1359-4311 print. -- ISSN 1873-5606 online |
| #17 | Associazione degli Industriali di Arezzo, Notiziario. -- Arezzo : Associazione degli Industriali di Arezzo, 1945-. -- ISSN 0004-5918 |
| #18 | Atom und Strom. -- Frankfurt am Main : Vereinigung Deutscher Elektrizitätswerke, 1955-1988. -- ISSN 0004-7066 |
| #19 | Atomic energy. -- New York : Consultants Bureau, 1992-. -- ISSN 1063-4258 print. -- ISSN 1573-8205 online |
| #20 | Atomic energy review. -- Vienna : International Atomic Energy Agency, 1963-. -- ISSN 0004-7112 |