Natuurtijdschriften

Rhyncholieten Article

Afzettingen, 2(2), 49-50.

Luit v.d. Tuuk and Taco Bor

January 1981
Van de geologisch sekretaris Article

Afzettingen, 2(2), 51-51.

J.J. de Klerk

January 1981
Paasexkursie 1981 Article

Afzettingen, 2(3), 54-60.

Anton Janse

January 1981
Sables de Vauroux-St.-Antoine Article

Afzettingen, 2(3), 61-71.

P. Lozouet and P. Maestrati

January 1981
Determinatiewerken Article

Afzettingen, 2(3), 72-72.

onbekend

January 1981
Naamgeving in de systematiek II Article

Afzettingen, 2(3), 73-77.

Lenard Vaessen

January 1981
Verslag pinksterexkursie 1981 Article

Afzettingen, 2(4), 80-82.

Martin Cadée

January 1981
Fossiele statolieten van inktvissen Article

Afzettingen, 2(4), 83-87.

G.C. Cadée

January 1981

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