Mystery Comics Digest (1972) 5 & 10

The Occult Files of Doctor Spektor (1973) 1

Mystery Comics Digest (1972) 11

The Occult Files of Doctor Spektor (1973) 2

Mystery Comics Digest (1972) 12

The Occult Files of Doctor Spektor (1973) 3-4

Gold Key Comics’1973: The Occult Files of Dr. Spektor #5 – A History of Comics Index

Gold Key Comics’1974: The Occult Files of Dr. Spektor #6 – A History of Comics Index

The Occult Files of Doctor Spektor (1973) 7

Gold Key Comics’1974: The Occult Files of Dr. Spektor #8 – A History of Comics Index

Gold Key Comics’1974: The Occult Files of Dr. Spektor #9 – A History of Comics Index

The Occult Files of Doctor Spektor (1973) 10

Mystery Comics Digest (1972) 21

Gold Key Comics’1974-75 – Event: Dr. Spektor: I…Werewolf! – A History of Comics Index

Spine-Tingling Tales (1975) 1

The Occult Files of Doctor Spektor (1973) 14-15

Spine-Tingling Tales (1975) 2

Gold Key Comics’1975: The Occult Files of Dr. Spektor #16 – A History of Comics Index

The Occult Files of Doctor Spektor (1973) 17

Spine-Tingling Tales (1975) 3

Gold Key Comics’1975: The Occult Files of Dr. Spektor #18 – A History of Comics Index

Spine-Tingling Tales (1975) 4

The Occult Files of Doctor Spektor (1973) 19-24

Tragg and the Sky Gods (1975) 8 {1977}

Gold Key Spotlight (1976) 8 {1977}