45imp4 -

In this reference system, "" is an abbreviation commonly used for Imperial or Imprenta (printing/press), and " 4 " typically denotes a specific volume or entry index. Based on the cataloguing style of the World List of Scientific Periodicals , this code points to:

Could you clarify if you are looking for the indexed under this code, or a description of the periodical itself? 45imp4

The request for "" refers to a specific entry in the World List of Scientific Periodicals (1900–1950) , a major bibliographic reference for scientific journals. Identification In this reference system, "" is an abbreviation