Searching
AC - Article in a collection of essays
AD - Article in a dictionary
AE - Article in a Festschrift
AG - Article in a blog
AL - Article in a newsletter
AM - Article in a magazine
AN - Article in a newspaper
AP - Article in a periodical
AS - Article in a symposium/conference proceedings
AW - Article in an edition of music
EA - Article in a website, or on a CD-ROM

BC - Collection of essays
BE - Festschrift
BF - Facsimile or reprint edition
BG - Blog
BM - Monograph
BP - Periodical (thematic issue)
BS - Symposium proceedings
BT - Translation

MP - Motion picture
MR - Sound recording

CP - Program notes
CR - Recording notes
CS - Commentary apart from edition
CW - Edition of music

DD - Doctoral dissertation
DM - Non-doctoral thesis

MD - Technical drawing of instruments
ER - Electronic resource


RA - Review of an article
RB - Review of a book
RC - Review of a collection
RD - Review of a dissertation
RE - Review of a Festschrift
RF - Review of a facsimile or reprint
RM - Review of an edition of music
RN - Review of a technical drawing
RP - Review of a periodical
RR - Review of a recording
RS - Review of a symposium proceedings
RT - Review of a translation
RV - Review of a motion picture
RX - Review of an electronic resource