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APA ZitierstilButler, J. J. 1., & Waals, J. D. v. d. (1967). Bell beakers and earley metal-working in the Netherlands. - Groningen.
Chicago ZitierstilButler, J. J. 1921-2014., and Johannes D. van der Waals. Bell Beakers and Earley Metal-working in the Netherlands. - Groningen. 1967.
MLA ZitierstilButler, J. J. 1921-2014., and Johannes D. van der Waals. Bell Beakers and Earley Metal-working in the Netherlands. - Groningen. 1967.