Publisher RDF
pages:- Academia de Ciencias Administrativas
- Academia Mexicana de Neurología
- Academia Nacional de Medicina
- Academic Journals
- Academic Press
- Academic Press Inc.
- Academic Publishing House Researcher
- ACAMPA, Academia Mexicana del Paisaje, A.C.
- Acta Materialia Inc
- Acta Press
- Acta Scientific International Open Library
- Adis International Ltd
- African Ethnomedicines Network
- Agilent Technologies;Canadian Photonics Industry Consortium (CPIC);Sytacom
- Agricultural Research Communication Centre
- AIChE
- Ain Shams University
- AJRB
- Allen Press Inc.
- American Academy of Pediatrics
- American Association for Cancer Research Inc.
- American Association for the Advancement of Science
- American Association of Avian Pathologists
- American Association of Cereal Chemists
- American Association of Petroleum Geologists
- American Ceramic Society
- American Chemical Society
- American College of Physicians
- American Diabetes Association
- American Heart Association Inc.