Sandell, E. J. 1989. Ankylosaurus: the armored dinosaur. Dinosaur Discovery Era Series. Naples, FL: Bancroft-Sage Publications.
Sandell, E. J. 1989. Apatosaurus: the deceptive dinosaur. Dinosaur Discovery Era Series. Naples, FL: Bancroft-Sage Publications.
Sandell, E. J. 1989. Archaeopteryx: the first bird. Dinosaur Discovery Era Series. Naples, FL: Bancroft-Sage Publications.
Sandell, E. J. 1989. Compsognathus: the smallest dinosaur. Dinosaur Disco
very Era Series. Naples, FL: Bancroft-Sage Publications.
Sandell, E. J. 1989. Dimetrodon: the sail-backed reptile. Dinosaur Discovery Era Series. Naples, FL: Bancroft-Sage Publications.
Sandell, E. J. 1989. Maiasaura: the good mother dinosaur. Dinosaur Discovery Era Series. Naples, FL: Bancroft-Sage Publications.
Sandell, E. J. 1989. Plesiosaurus: the swimming reptile. Dinosaur Discovery Era Series. Naples, FL: Bancroft-Sage Publications.
Sandell, E. J. 1989. Pteranodon: the flying reptile. Dinosaur Discovery Era Series. Naples, FL: Bancroft-Sage Publications.
Sandell, E. J. 1989. Seismosaurus: the longest dinosaur. Dinosaur Discovery Era Series. Naples, FL: Bancroft-Sage Publications.
Sandell, E. J. 1989. Stegosaurus: the dinosaur with the smallest brain. Dinosaur Discovery Era Series. Naples, FL: Bancroft-Sage Publications.
Sandell, E. J. 1989. Triceratops: the last dinosaur. Dinosaur
Discovery Era Series. Naples, FL: Bancroft-Sage Publications.
Sandell, E. J. 1989. Tyrannosaurus Rex: the fierce dinosaur. Dinosaur Discovery Era Series. Naples, FL: Bancroft-Sage Publications.