Dyfyniad APA

Roberts, H. E. (1970). Practical refrigeration for marine engineers. James Munro.

Dyfyniad Arddull Chicago

Roberts, H E. Practical Refrigeration for Marine Engineers. Glasgow: James Munro, 1970.

Dyfyniad MLA

Roberts, H E. Practical Refrigeration for Marine Engineers. James Munro, 1970.

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