Packer, D.B. & Zetlin, C.A. & Vitaliano, J.J. (2003)
Little skate, Leucoraja erinacea, life history and habitat characteristics. NOAA Technical Memorandum NMFS–NE–175, Woods Hole, Massachusetts, 66 p.

Packer, D.B. & Zetlin, C.A. & Vitaliano, J.J. (2003)
Smooth skate, Malacoraja senta, life history and habitat characteristics. NOAA Technical Memorandum NMFS–NE–177, Woods Hole, Massachusetts, 26 p.

Packer, D.B. & Zetlin, C.A. & Vitaliano, J.J. (2003)
Thorny skate, Amblyraja radiata, life history and habitat characteristics. NOAA Technical Memorandum NMFS–NE–178, Woods Hole, Massachusetts, 39 p.

Packer, D.B. & Zetlin, C.A. & Vitaliano, J.J. (2003)
Winter skate, Leucoraja ocellata, life history and habitat characteristics. NOAA Technical Memorandum NMFS–NE–179, Woods Hole, Massachusetts, 57 p.

Packer, D.B. & Zetlin, C.A. & Vitaliano, J.J. (2003)
Barndoor Skate, Dipturus laevis, Life History and Habitat Characteristics. NOAA Technical Memorandum NMFS–NE–173, Woods Hole, Massachusetts, 23 p.