Robert Herdman : : 1829-1888.

MLA

Errington, Lindsay. Robert Herdman : 1829-1888. Edinburgh: National Galleries of Scotland, 1988.

APA

Errington, L. (1988). Robert Herdman : 1829-1888. Edinburgh: National Galleries of Scotland.

Chicago

Errington, Lindsay Robert Herdman: 1829-1888. Edinburgh: National Galleries of Scotland, 1988.