Gaya APA

Ekwall, P., (a.o), K, ,, G. (1965). Surface Chemistry Proceedings of the Second Scandinavian Symposium on Surface Activity . Denmark: Munksgaard.

Gaya MLA

Ekwall, Per., (a.o), Kjell, ,, Groth. "Surface Chemistry Proceedings of the Second Scandinavian Symposium on Surface Activity". Denmark: Munksgaard, 1965. Text.