Origine des ptychodontes
Series: Memoires -- Ser. 2, no. 49; Mémoires (Institut royal des sciences naturelles de Belgique) -- Ser. 2, no. 49.
Published: 1953
Place of publication: Bruxelles
Language: fre
Number of pages: 51
Subjects: Ptychodera
Notes: "Index bibliographique": p. 44-46.