Roy, A. E., & Clarke, D. C. (1982). Astronomy: Principles and practice (2nd ed.). Adam Hilger ltd.
Čikaški stil citiranjaRoy, A. E., i D. C. Clarke. Astronomy: Principles and Practice. 2nd ed. Bristol: Adam Hilger ltd, 1982.
MLA način citiranjaRoy, A. E., i D. C. Clarke. Astronomy: Principles and Practice. 2nd ed. Adam Hilger ltd, 1982.
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