Austria, with the collaboration of J.R.McIlraith.
APA Citation
Whitman, S., McIlraith, J. Robert. (1899). Austria, with the collaboration of J.R.McIlraith. London: T.Fisher Unwin;[etc.,etc.].
MLA Citation
Whitman, Sidney, and John Robert McIlraith. Austria, With the Collaboration of J.R.McIlraith. London: T.Fisher Unwin;[etc.,etc.], 1899.
Warning: These citations may not always be complete (especially for serials).