"Gregynog Astrophysics Workshop (1977 ; Cardiff) (1977/08 : Cardiff)" . . . "Nuages Physique Congrès." . . "SCIENCE / Astronomy" . . "Gregynog Astrophysics Workshop. <3, 1977, Cardiff>." . . "Stars Congresses." . . "Stars." . . "Interstellares Gas." . . "Molecular clouds." . . "Gregynog Astrophysics Workshop (3rd ; 1977)" . . . "Gregynog Astrophysics Workshop (3 ; 1977 ; Newtown)." . . . . . "Giant molecular clouds in the galaxy : Third Gregynog Astrophysics Workshop" . . "Giant molecular clouds in the Galaxy : Third Gregynog Astrophysics Workshop [held at the University of Wales in August 1977]" . . . . . . . "Giant molecular clouds in the galaxy : 3rd Gregynog Astrophysics Workshop" . . . . . . "Giant Molecular Clouds in the Galaxy."@en . . . "ASTROPHYSICS WORKSHOP" . . . . "Giant molecular clouds in the galaxy : third Gregynog Astrophysics Workshop"@en . "Giant molecular clouds in the Galaxy : third Gregynog Astrophysics Workshop" . . . . "Giant molecular clouds in the galaxy : third Gregynog astrophysics workshop; Cardiff, (August 1977)" . "Giant molecular clouds in the galaxy : 3. Gregynog Astrophysics Workshop" . . . . . . . . . "Congresverslag" . . . . . . . . . . . . . . . "Conference proceedings" . "Conference proceedings"@en . "Electronic books"@en . . . . "Giant molecular clouds in the galaxy" . . "Conference papers and proceedings" . . . "Moleculaire wolken." . . "Galaxies." . . "Galaxies Congresses." . . . . "Sterstelsels." . . "galaxie (notre) milieu interstellaire [congrès]" . . "Molecular clouds Congresses." . . "Milchstrasse." . . "Sternentstehung." . . "Gregynog Astrophysics Workshop (3rd : 1977 : University of Wales)" . . . "Matière interstellaire Congrès." . . "Gregynog Astrophysics Workshop (3 : 1977 : University of Wales)" . . . "Materia Interestelar E Nebulosas Planetarias." . . "Materia Interestelar E Nebulosas Planetarias" .