A booke named tectonicon briefly shewing the exact measuring, and speedie reckoning all manner of land, squares, timber, stone, steeples, pillers, globes &c. - Digges, Leonard -1571 (Imprinted by Felix Kyngston, 1630)
Illustrated t.p. - Pages numbered on recto only. - Reproduction of original in the British Library. - STC (2nd ed.), 6855. - Signatures: A-B4 C4(C3+[X]1) D4 [X]1 E-G4