APA Citation
Goddard, Robert Hutchings,. Robert H. Goddard letter to Lionel Aucoin, dated Mescalero Ranch, Post Office Box 978, Roswell, New Mexico, 7 March 1936. Retrieved from https://library.si.edu/digital-library/book/roberthgoddardl00goddb
MLA Citation
Goddard, Robert Hutchings,. Robert H. Goddard letter to Lionel Aucoin, dated Mescalero Ranch, Post Office Box 978, Roswell, New Mexico, 7 March 1936. https://library.si.edu/digital-library/book/roberthgoddardl00goddb
Chicago
Goddard, Robert Hutchings,. Robert H. Goddard letter to Lionel Aucoin, dated Mescalero Ranch, Post Office Box 978, Roswell, New Mexico, 7 March 1936. https://library.si.edu/digital-library/book/roberthgoddardl00goddb
Warning: These citations may not always be complete (especially for serials).