PERSON@1 -- PERSON@2 ' was the main system of transcription in the MISC@1 world for most of the 20th century , used in several standard reference books and in all books about LOCATION@1 published before NUMBER@1 .

PERSON@3 was the main system of transliteration in the MISC@1 world for much of the 20th century . It is used in several standard reference books . It is also used in all books about LOCATION@1 published before NUMBER@1 .
