Legacies: Book #3: Purgatory's Key (Star Trek: The Original Series)/Ward, Dayton/ISBN 1501122770 (33 copies separate)
Legacies: Book #3: Purgatory's Key (Star Trek: The Original Series)/Ward, Dayton/ISBN 1501122770 (24 copies separate)
Legacies: Book #3: Purgatory's Key (Star Trek: The Original Series)/Ward, Dayton (8 copies separate)
Legacies: Book #3: Purgatory's Key (Star Trek: The Original Series)/Ward, Dayton/ISBN 1501122789 (4 copies separate)
Purgatory's key/Ward, Dayton/ISBN 1501122770 (3 copies separate)
Purgatory's Key/Ward, Dayton/ISBN 1501122770 (3 copies separate)
Legacies: Book #3: Purgatory's Key (Star Trek: The Original Series)/Ward, Dayton/ISBN 1501122789 (3 copies separate)
Purgatory's Key: Star Trek: Legacies, Book 3/Ward, Dayton (2 copies separate)
Legacies: Book #3: Purgatory's Key (Star Trek: The Original Series)/Ward, Dayton (2 copies separate)
Legacies #3: Purgatory's Key (Star Trek: The Original Series)/Ward, Dayton/ISBN 1501122770 (2 copies separate)
Purgatory's Key (Legacies 3)/Ward, Dayton/ISBN 1501122770 (1 copy separate)
Legacies, Book 3: Purgatory's Key (Star Trek: The Original Series)/Ward, Dayton/ISBN 1501122770 (1 copy separate)
Purgatory's Key (Star Trek: Legacies #3)/Ward, Dayton (1 copy separate)
Legacies: Book #3: Purgatory's Key (Star Trek: The Original Series) (Ebook)/Ward, Dayton/ISBN 1501122770 (1 copy separate)
Purgatory's Key: Star Trek: Legacies, Book 3/Ward, Dayton (1 copy separate)
Legacies: Purgatory's Key/Ward, Dayton/ISBN 1501122770 (1 copy separate)
Purgatory's Key (Star Trek: Legacies #3)/Ward, Dayton/ISBN 1501122770 (1 copy separate)
Star Trek: Legacies Book 3: Purgatory's Key/Ward, Dayton/ISBN 1501122770 (1 copy separate)
Star Trek TOS: Legacies #3: Purgatory's Key/Ward, Dayton/ISBN 1501122770 (1 copy separate)
Purgatory's Key (Star Trek: The Original Series)/Ward, Dayton/ISBN 1501122770 (no current copies separate)