The National Gallery of Canada Ottawa : : Catalogue of Paintings and Sculpture ; Volume I : Older Schools.

MLA

Hubbard, R.H. The National Gallery of Canada Ottawa : Catalogue of Paintings and Sculpture ; Volume I : Older Schools. Ottawa: The Trustees of the National Gallery of Canada, 1957.

APA

Hubbard, R. (1957). The National Gallery of Canada Ottawa : Catalogue of Paintings and Sculpture ; Volume I : Older Schools. Ottawa: The Trustees of the National Gallery of Canada.

Chicago

Hubbard, R.H. The National Gallery of Canada Ottawa: Catalogue of Paintings and Sculpture ; Volume I : Older Schools. Ottawa: The Trustees of the National Gallery of Canada, 1957.