Matches in Library of Congress for { ?s ?p 1668.. }
- 91895179 issued "1668.".
- 91895180%2F%2Fr91 issued "1668.".
- 92250047 issued "1668.".
- 93176319 issued "1668.".
- 93180078 issued "1668.".
- 94179432 issued "1668.".
- 95206450 issued "1668.".
- 95207068 issued "1668.".
- 95207200 issued "1668.".
- 95207228 issued "1668.".
- 95207656 issued "1668.".
- a31001283 issued "1668.".