get
https://apibeta.familysearch.org/platform/tree/source-references
The Source References Query returns a collection of persons and relationships that reference a specific source description or a specific source, depending on which parameter is used. To see a list of all persons and relationships attached to a source such as a census record, use the source parameter. To see a list of all persons and relationships attached to a source description, use the description parameter.
200Upon a successful read.
204Upon a successful query with no results
404The specified source description was not found.
429If the request is throttled.