Apollo 13 en 14, book, [1965..1973]; (https://digital.library.unt.edu/ark:/67531/metadc646/m1/1/: accessed May 18, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .
Apollo 13 en 14, book, [1965..1973]; (https://digital.library.unt.edu/ark:/67531/metadc646/m1/1/: accessed May 18, 2024), University of North Texas Libraries, UNT Digital Library, digital.library.unt.edu; .