Lankamp, H. (1970). Radicals of the diphenylmethyl and triphenylmethy type: Revision of the current equilibrium theory. Drukkerij Bronder-Offset.
Lua i Stíl Chicago (17ú heag.)Lankamp, Herman. Radicals of the Diphenylmethyl and Triphenylmethy Type: Revision of the Current Equilibrium Theory. Rotterdam: Drukkerij Bronder-Offset, 1970.
Lua MLA (8ú heag.)Lankamp, Herman. Radicals of the Diphenylmethyl and Triphenylmethy Type: Revision of the Current Equilibrium Theory. Drukkerij Bronder-Offset, 1970.
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