| #1 | Archives of environmental health. -- Washington : Heldref Publications, 1960-2005. -- ISSN 0003-9896 |
| #2 | Archives of environmental & occupational health. -- Washington : Heldref Publications, 2005-. -- ISSN 1933-8244 print. -- ISSN 2154-4700 online |
| #3 | Rocks and minerals. -- Washington : Heldref Publications, 1926-. -- ISSN 0035-7529 print. -- ISSN 1940-1191 online |
| #4 | Science activities. -- Washington : Heldref Publications, 1969-. -- ISSN 0036-8121 print. -- ISSN 1940-1302 online |
| #5 | Weatherwise. -- Washington : Heldref Publications, 1948-. -- ISSN 0043-1672 print. -- ISSN 1940-1310 online |