Dyfyniad APA

Lappert M.F. (1972). Main group elements: Hydrogen and groups I-IV. Butterworths.

Dyfyniad Arddull Chicago

Lappert M.F. Main Group Elements: Hydrogen and Groups I-IV. London: Butterworths, 1972.

Dyfyniad MLA

Lappert M.F. Main Group Elements: Hydrogen and Groups I-IV. Butterworths, 1972.

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