Module: ONIX::IsbnMethods

Included in:
Product
Defined in:
lib/onix/identifier.rb

Instance Method Summary collapse

Instance Method Details

#isbn13 ⇒ Object

ISBN-13 string identifier from identifiers



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# File 'lib/onix/identifier.rb', line 118

def isbn13
  if isbn13_identifier
    isbn13_identifier.value
  else
    nil
  end
end