Gaya APA

PERRY, J, A., PERRY, E, K. (1817). CONTEMPORERY SOCIETY: AN INTRODUCTION TO SOCIAL SCIENCE FIFTH EDITION . United States of America: HARPER & ROW, PUBLISHER.

Gaya MLA

PERRY, JOHN, A.., PERRY, ERNA, K.. "CONTEMPORERY SOCIETY: AN INTRODUCTION TO SOCIAL SCIENCE FIFTH EDITION". United States of America: HARPER & ROW, PUBLISHER, 1817. Text.