Slayton, Donald2018-07-192018-07-191969-11-03http://hdl.handle.net/2152.3/9569An official United States Government Memorandum written by Donald Slayton regarding Personal Preference Kits and Souvenirs on Manned Space FlightsDonald SlaytonDr. William ThorntonSpace MedicineUnited States Government MemorandumPersonal Preference KitsSouvenirsManned Space Flights