# All Our Yesterdays: The Time Travel Sourcebook
**Wikidata**: [Q126499578](https://www.wikidata.org/wiki/Q126499578)  
**Source**: https://4ort.xyz/entity/all-our-yesterdays-the-time-travel-sourcebook


## References

1. [Open Library](https://openlibrary.org/books/OL7645261M/All_Our_yesterdays_The_Time_Travel_Sourcebook_(Star_Trek_The_Expanded_Universe))
2. [Fandom](https://memory-beta.fandom.com/wiki/All_Our_Yesterdays:_The_Time_Travel_Sourcebook)
3. [Source](https://rpggeek.com/rpgitem/49729/all-our-yesterdays)