A contribution to the embryology and phylogeny of the pycnogonids : a dissertation
presented to the board for the degree of Doctor of philosophy of Johns Hopkins university/by
T. H. Morgan, ...,1891
BN Cat. gén.. BN Cat. gén. suppl.. BN Cat. gén. 1960-1969
LCNA (CD), 1996-06 : Morgan, Thomas Hunt, 1866-1945. Internet : http://www.lincei.it
(Elenco generale dei soci dell'Accademia dal 1870), 1999-06-16
The theory of the gene / Thomas Hunt Morgan, 1988 [reprod. de l'éd. de 1926]