since the Source for this element is or includes '[OSoI]', accept the data if it is 'supplied' (e.g., in square brackets, or explained in a note), as long as it seems applicable; indicate that the data is 'supplied' (with square brackets or a note 2.2.4), if that has not been done
but be sure to check the resource carefully, if the data for the element is Core, or if the data is important for differentiating the resource from a similar resource
Check below, for any useful Notes
General Notes:
technically we should enter all places listed on the source, but the core instructions allow us to enter only the most prominent place provided on the resource, or if none are prominent, then the first (2.8.2.4 + the core instruction at 2.8.2)
it is ok to supply a name of a larger jurisdiction, but do not abbreviate supplied data (B.4)
data must be provided for this element; if no data is available, anywhere (e.g., on the web) try to guess; if you cannot guess, enter '[Place of publication not identified] ; do not abbreviate supplied data (B.4)
RDA:
check that '[Place of publication not identified]' has been given in the correct form, exactly as given here
follow AACR thinking for this element, but it is your choice whether or not to spell out place abbreviations and use [Place of publication not identified] instead of [S.l.]
MARC:
always check that the second indicator is given as '1' if the data in the field is publication data
check the correct ISBD separating punctuation for a repeated Place of Publication: