Nold, J. L. (1989). Use of Library Readings to Augment Conventional Geology Instruction.
Citazione stile Chigago Style (17a edizione)Nold, John Lloyd. Use of Library Readings to Augment Conventional Geology Instruction. 1989.
Citatione MLA (9a ed.)Nold, John Lloyd. Use of Library Readings to Augment Conventional Geology Instruction. 1989.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.