APA (7th ed.) Citation

Porter, R. I. (1970). Further elementary analysis / by R.I. Porter (4th, metricated ed.). Bell.

Chicago Style (17th ed.) Citation

Porter, R. I. Further Elementary Analysis / by R.I. Porter. 4th, metricated ed. London: Bell, 1970.

MLA (9th ed.) Citation

Porter, R. I. Further Elementary Analysis / by R.I. Porter. 4th, metricated ed. Bell, 1970.

Warning: These citations may not always be 100% accurate.