Œuvres / Malebranche ; édition établie par Geneviève Rodis-Lewis, avec la collaboration de Germain Malbreil. (OCLC #6105260)
Series statements (including numbering) may not be prominent. This volume’s full statement is hidden in the back of the book among the printing information:
Ce volume, portant le numéro trois cent quatre-vingt-dix, de la “Bibliothèque de la Pléiade”…
RDA 1.8.3 on Numerals Expressed as Words (which applies to numbering within series) says to substitute numerals for numbers expressed as words, so this is recorded in the series statement as:
490 0_ ǂa Bibliothèque de la Pléiade ; ǂv 277, 390
Similarly, the series numbering example in the series authority record also indicates that this should be recorded as a numeral:
642 __ 283 ǂ5 DPCC ǂ5 DLC
so we record it that way in the series added entry:
830 _ 0 ǂa Bibliothèque de la Pléiade ; ǂv 277, 390