1.
, . The critical mass in collective action. Cambridge, New York, Victoria: Cambridge university press; 1993.
et . The critical mass in collective action. Cambridge, New York, Victoria : Cambridge university press, 2 mai 1993. ISBN 0-521-30839-9
Marwell Gerald & Oliver Pamela. (1993). The critical mass in collective action: A micro-social theory. Cambridge university press.
MLA (8th ed.) CitationMarwell Gerald and Oliver Pamela. The Critical Mass in Collective Action: A Micro-social Theory. Cambridge university press, 1993.
Warning: These citations may not always be 100% accurate.