| #221 | Oxidation of metals. -- Dodrecht : Kluwer Academic Publishers, 1969-. -- ISSN 0030-770X print. -- ISSN 1573-4889 online |
| #222 | Periodica mathematica Hungarica. -- Budapest : Kluwer Academic Publishers, 1971-. -- ISSN 0031-5303 print. -- ISSN 1588-2829 online |
| #223 | Phenomenology and the cognitive sciences. -- Dordrecht : Kluwer Academic Publishers, 2002-. -- ISSN 1568-7759 print. -- ISSN 1572-8676 online |
| #224 | Photonic network communications. -- Boston : Kluwer Academic Publishers, 1999-. -- ISSN 1387-974X print. -- ISSN 1572-8188 online |
| #225 | Phytochemistry reviews. -- Dordrecht : Kluwer Academic Publishers, 2002-. -- ISSN 1568-7767 print. -- ISSN 1572-980X online |
| #226 | Pituitary. -- New York : Kluwer Academic Publishers, 1998-. -- ISSN 1386-341X print. -- ISSN 1573-7403 online |
| #227 | Plant and soil. -- Dordecht : Kluwer Academic Publishers, 1949-. -- ISSN 0032-079X print. -- ISSN 1573-5036 online |
| #228 | Plant cell, tissue and organ culture. -- Dordrecht : Kluwer Academic Publishers, 1981-. -- ISSN 0167-6857 print. -- ISSN 1573-5044 online |
| #229 | Plant ecology. -- Dordrecht : Kluwer Academic Publishers, 1997-. -- ISSN 1385-0237 print. -- ISSN 1573-5052 online |
| #230 | Plant foods for human nutrition. -- Dordrecht : Kluwer Academic Publishers, 1987-. -- ISSN 0921-9668 print. -- ISSN 1573-9104 online |