%% You should probably cite rfc1213 instead of this I-D.
@techreport{ietf-snmp-mib2-04,
    number =    {draft-ietf-snmp-mib2-04},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-ietf-snmp-mib2/04/},
    author =    {Dr. Marshall T. Rose and Keith McCloghrie},
    title =     {{Management Information Base for Network Management of TCP/IP-based internets: MIB-II}},
    pagetotal = 70,
    year =      1990,
    month =     dec,
    day =       16,
    abstract =  {This memo defines the second version of the Management Information Base (MIB-II) for use with network management protocols in TCP/IP-based internets. {[}STANDARDS-TRACK{]}},
}