Is “Propanol” correct name according to the latest IUPAC nomenclature?

My teacher said that Propan-1-ol can also be written as Propanol in latest IUPAC nomenclature. I doubt this because wikipedea mentions only Propan-1-ol in IUPAC naming and Propanol in other names.

Similarly But-1-ene can be written as Butene and so on other similar organic compounds.

Could you provide me some reference which would clearly mention that Propanol is not the correct IUPAC name.

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From IUPAC Nomenclature of Organic Chemistry page : Any name other than a preferred IUPAC name, as long as it is unambiguous and follows the principles of the IUPAC recommendations herein, is acceptable as a ‘general’ IUPAC name, in the context of ‘general’ IUPAC nomenclature. So, perhaps the question is poorly worded, and should read "what is the preferred IUPAC name". –  long Jul 25 '14 at 4:52