Manual of procedures for the salvage and necropsy of carcasses of the West Indian Manatee (Trichechus manatus) /

"A few minor corrections were made and this manuscript was reprinted in September 1984."

Anatomische und zoologische untersuchungen über das wallross (Trichechus rosmarus) und vergleichung dieses thiers mit andern see-saugethieren,

Mode of access: Internet.